diff --git a/src/api/memory_visualizer_router.py b/src/api/memory_visualizer_router.py
index 1f0eb27ee..b35c1c074 100644
--- a/src/api/memory_visualizer_router.py
+++ b/src/api/memory_visualizer_router.py
@@ -61,27 +61,15 @@ def find_available_data_files() -> List[Path]:
     return sorted(files, key=lambda f: f.stat().st_mtime, reverse=True)
 
 
-def load_graph_data_from_file(
-    file_path: Optional[Path] = None,
-    nodes_page: Optional[int] = None,
-    nodes_per_page: Optional[int] = None,
-    edges_page: Optional[int] = None,
-    edges_per_page: Optional[int] = None,
-) -> Dict[str, Any]:
-    """
-    从磁盘加载图数据, 支持分页。
-    如果不提供分页参数, 则加载并缓存所有数据。
-    """
+def load_graph_data_from_file(file_path: Optional[Path] = None) -> Dict[str, Any]:
+    """从磁盘加载图数据"""
     global graph_data_cache, current_data_file
 
-    # 如果是请求分页数据, 则不使用缓存的全量数据
-    is_paged_request = nodes_page is not None or edges_page is not None
-
     if file_path and file_path != current_data_file:
         graph_data_cache = None
         current_data_file = file_path
 
-    if graph_data_cache and not is_paged_request:
+    if graph_data_cache:
         return graph_data_cache
 
     try:
@@ -96,78 +84,53 @@ def load_graph_data_from_file(
         if not graph_file.exists():
             return {"error": f"文件不存在: {graph_file}", "nodes": [], "edges": [], "stats": {}}
 
-        # 只有在没有缓存时才从磁盘读取和处理文件
-        if not graph_data_cache:
-            with open(graph_file, "r", encoding="utf-8") as f:
-                data = orjson.loads(f.read())
+        with open(graph_file, "r", encoding="utf-8") as f:
+            data = orjson.loads(f.read())
 
-            nodes = data.get("nodes", [])
-            edges = data.get("edges", [])
-            metadata = data.get("metadata", {})
+        nodes = data.get("nodes", [])
+        edges = data.get("edges", [])
+        metadata = data.get("metadata", {})
 
-            nodes_dict = {
-                node["id"]: {
-                    **node,
-                    "label": node.get("content", ""),
-                    "group": node.get("node_type", ""),
-                    "title": f"{node.get('node_type', '')}: {node.get('content', '')}",
-                }
-                for node in nodes
-                if node.get("id")
+        nodes_dict = {
+            node["id"]: {
+                **node,
+                "label": node.get("content", ""),
+                "group": node.get("node_type", ""),
+                "title": f"{node.get('node_type', '')}: {node.get('content', '')}",
             }
+            for node in nodes
+            if node.get("id")
+        }
 
-            edges_list = []
-            seen_edge_ids = set()
-            for edge in edges:
-                edge_id = edge.get("id")
-                if edge_id and edge_id not in seen_edge_ids:
-                    edges_list.append(
-                        {
-                            **edge,
-                            "from": edge.get("source", edge.get("source_id")),
-                            "to": edge.get("target", edge.get("target_id")),
-                            "label": edge.get("relation", ""),
-                            "arrows": "to",
-                        }
-                    )
-                    seen_edge_ids.add(edge_id)
-
-            stats = metadata.get("statistics", {})
-            total_memories = stats.get("total_memories", 0)
-
-            graph_data_cache = {
-                "nodes": list(nodes_dict.values()),
-                "edges": edges_list,
-                "memories": [], # TODO: 未来也可以考虑分页加载记忆
-                "stats": {
-                    "total_nodes": len(nodes_dict),
-                    "total_edges": len(edges_list),
-                    "total_memories": total_memories,
-                },
-                "current_file": str(graph_file),
-                "file_size": graph_file.stat().st_size,
-                "file_modified": datetime.fromtimestamp(graph_file.stat().st_mtime).isoformat(),
+        edges_list = [
+            {
+                **edge,
+                "from": edge.get("source", edge.get("source_id")),
+                "to": edge.get("target", edge.get("target_id")),
+                "label": edge.get("relation", ""),
+                "arrows": "to",
             }
+            for edge in edges
+        ]
 
-        # 如果是分页请求, 则从缓存中切片数据
-        if is_paged_request:
-            paged_data = graph_data_cache.copy() # 浅拷贝一份, 避免修改缓存
-            
-            # 分页节点
-            if nodes_page is not None and nodes_per_page is not None:
-                node_start = (nodes_page - 1) * nodes_per_page
-                node_end = node_start + nodes_per_page
-                paged_data["nodes"] = graph_data_cache["nodes"][node_start:node_end]
-            
-            # 分页边
-            if edges_page is not None and edges_per_page is not None:
-                edge_start = (edges_page - 1) * edges_per_page
-                edge_end = edge_start + edges_per_page
-                paged_data["edges"] = graph_data_cache["edges"][edge_start:edge_end]
-                
-            return paged_data
+        stats = metadata.get("statistics", {})
+        total_memories = stats.get("total_memories", 0)
 
+        graph_data_cache = {
+            "nodes": list(nodes_dict.values()),
+            "edges": edges_list,
+            "memories": [],
+            "stats": {
+                "total_nodes": len(nodes_dict),
+                "total_edges": len(edges_list),
+                "total_memories": total_memories,
+            },
+            "current_file": str(graph_file),
+            "file_size": graph_file.stat().st_size,
+            "file_modified": datetime.fromtimestamp(graph_file.stat().st_mtime).isoformat(),
+        }
         return graph_data_cache
+
     except Exception as e:
         import traceback
 
@@ -188,7 +151,7 @@ def _format_graph_data_from_manager(memory_manager) -> Dict[str, Any]:
 
     all_memories = memory_manager.graph_store.get_all_memories()
     nodes_dict = {}
-    edges_dict = {}
+    edges_list = []
     memory_info = []
 
     for memory in all_memories:
@@ -210,8 +173,8 @@ def _format_graph_data_from_manager(memory_manager) -> Dict[str, Any]:
                     "title": f"{node.node_type.value}: {node.content}",
                 }
         for edge in memory.edges:
-            if edge.id not in edges_dict:
-                edges_dict[edge.id] = {
+            edges_list.append(  # noqa: PERF401
+                {
                     "id": edge.id,
                     "from": edge.source_id,
                     "to": edge.target_id,
@@ -219,8 +182,7 @@ def _format_graph_data_from_manager(memory_manager) -> Dict[str, Any]:
                     "arrows": "to",
                     "memory_id": memory.id,
                 }
-    
-    edges_list = list(edges_dict.values())
+            )
 
     stats = memory_manager.get_statistics()
     return {
@@ -235,67 +197,28 @@ def _format_graph_data_from_manager(memory_manager) -> Dict[str, Any]:
         "current_file": "memory_manager (实时数据)",
     }
 
-@router.get("/api/graph/paged")
-async def get_paged_graph(
-    nodes_page: int = 1, nodes_per_page: int = 100, edges_page: int = 1, edges_per_page: int = 200
-):
-    """获取分页的记忆图数据"""
-    try:
-        # 确保全量数据已加载到缓存
-        full_data = load_graph_data_from_file()
-        if "error" in full_data:
-             raise HTTPException(status_code=404, detail=full_data["error"])
-
-        # 从缓存中获取全量数据
-        all_nodes = full_data.get("nodes", [])
-        all_edges = full_data.get("edges", [])
-        total_nodes = len(all_nodes)
-        total_edges = len(all_edges)
-        
-        # 计算节点分页
-        node_start = (nodes_page - 1) * nodes_per_page
-        node_end = node_start + nodes_per_page
-        paginated_nodes = all_nodes[node_start:node_end]
-
-        # 计算边分页
-        edge_start = (edges_page - 1) * edges_per_page
-        edge_end = edge_start + edges_per_page
-        paginated_edges = all_edges[edge_start:edge_end]
-
-        return JSONResponse(
-            content={
-                "success": True,
-                "data": {
-                    "nodes": paginated_nodes,
-                    "edges": paginated_edges,
-                    "pagination": {
-                        "nodes": {
-                            "page": nodes_page,
-                            "per_page": nodes_per_page,
-                            "total": total_nodes,
-                            "total_pages": (total_nodes + nodes_per_page - 1) // nodes_per_page,
-                        },
-                        "edges": {
-                            "page": edges_page,
-                            "per_page": edges_per_page,
-                            "total": total_edges,
-                            "total_pages": (total_edges + edges_per_page - 1) // edges_per_page,
-                        },
-                    },
-                },
-            }
-        )
-    except Exception as e:
-        return JSONResponse(content={"success": False, "error": str(e)}, status_code=500)
-
 
 @router.get("/api/graph/full")
-async def get_full_graph_deprecated():
-    """
-    (已废弃) 获取完整记忆图数据。
-    此接口现在只返回第一页的数据, 请使用 /api/graph/paged 进行分页获取。
-    """
-    return await get_paged_graph(nodes_page=1, nodes_per_page=100, edges_page=1, edges_per_page=200)
+async def get_full_graph():
+    """获取完整记忆图数据"""
+    try:
+        from src.memory_graph.manager_singleton import get_memory_manager
+
+        memory_manager = get_memory_manager()
+
+        data = {}
+        if memory_manager and memory_manager._initialized:
+            data = _format_graph_data_from_manager(memory_manager)
+        else:
+            # 如果内存管理器不可用，则从文件加载
+            data = load_graph_data_from_file()
+
+        return JSONResponse(content={"success": True, "data": data})
+    except Exception as e:
+        import traceback
+
+        traceback.print_exc()
+        return JSONResponse(content={"success": False, "error": str(e)}, status_code=500)
 
 
 @router.get("/api/files")
diff --git a/src/api/templates/visualizer.html b/src/api/templates/visualizer.html
index 9c44a420f..47c105863 100644
--- a/src/api/templates/visualizer.html
+++ b/src/api/templates/visualizer.html
@@ -533,18 +533,11 @@
         let network = null;
         let availableFiles = [];
         let graphData = {
-            nodes: new vis.DataSet([])
-,
-            edges: new vis.DataSet([])
+            nodes: [],
+            edges: [],
+            memories: []
         };
-        let originalData = null; // 用于过滤器
-
-        // 分页状态
-        let pagination = {
-            nodes: { page: 1, per_page: 200, total_pages: 1, total: 0 },
-            edges: { page: 1, per_page: 500, total_pages: 1, total: 0 }
-        };
-        let isLoading = false;
+        let originalData = null;
 
         // 节点颜色配置
         const nodeColors = {
@@ -660,93 +653,35 @@
             });
         }
 
-        // 重置并加载第一页数据
+        // 加载图形数据
         async function loadGraph() {
-            if (isLoading) return;
-            console.log('开始加载初始图数据...');
-            
-            // 重置状态
-            graphData.nodes.clear();
-            graphData.edges.clear();
-            pagination.nodes.page = 1;
-            pagination.edges.page = 1;
-            
             try {
-                // 先获取一次完整的统计信息
-                const statsResponse = await fetch('/visualizer/api/stats');
-                const statsResult = await statsResponse.json();
-                if(statsResult.success) {
-                    updateStats(statsResult.data);
-                    pagination.nodes.total = statsResult.data.total_nodes;
-                    pagination.edges.total = statsResult.data.total_edges;
-                    pagination.nodes.total_pages = Math.ceil(statsResult.data.total_nodes / pagination.nodes.per_page);
-                    pagination.edges.total_pages = Math.ceil(statsResult.data.total_edges / pagination.edges.per_page);
-                } else {
-                     throw new Error('获取统计信息失败: ' + statsResult.error);
-                }
-
-                // 加载第一页
-                await loadMoreData();
-
-            } catch (error) {
-                console.error('初始加载失败:', error);
-                alert('初始加载失败: ' + error.message);
-            }
-        }
-
-        // 加载更多数据（分页核心）
-        async function loadMoreData() {
-            if (isLoading) return;
-            
-            const canLoadNodes = pagination.nodes.page <= pagination.nodes.total_pages;
-            const canLoadEdges = pagination.edges.page <= pagination.edges.total_pages;
-
-            if (!canLoadNodes && !canLoadEdges) {
-                console.log('所有数据已加载完毕');
-                return;
-            }
-
-            isLoading = true;
-            document.getElementById('loading').style.display = 'block';
-
-            try {
-                const url = `/visualizer/api/graph/paged?nodes_page=${pagination.nodes.page}&nodes_per_page=${pagination.nodes.per_page}&edges_page=${pagination.edges.page}&edges_per_page=${pagination.edges.per_page}`;
-                console.log(`正在请求: ${url}`);
-                const response = await fetch(url);
+                document.getElementById('loading').style.display = 'block';
+                
+                const response = await fetch('/visualizer/api/graph/full');
                 const result = await response.json();
 
                 if (result.success) {
-                    console.log(`成功获取 ${result.data.nodes.length} 个节点, ${result.data.edges.length} 个边`);
-                    updateGraph(result.data); // 追加数据
-                    
-                    // 更新分页信息
-                    if (result.data.pagination) {
-                        pagination.nodes.page++;
-                        pagination.edges.page++;
-                    }
+                    originalData = result.data;
+                    updateGraph(result.data);
+                    updateStats(result.data.stats);
                 } else {
-                    throw new Error('加载分页数据失败: ' + result.error);
+                    alert('加载失败: ' + result.error);
                 }
             } catch (error) {
-                console.error('加载更多数据失败:', error);
+                console.error('加载图形失败:', error);
                 alert('加载失败: ' + error.message);
             } finally {
-                isLoading = false;
                 document.getElementById('loading').style.display = 'none';
             }
         }
-        // 更新图形显示（追加数据）
-        function updateGraph(data) {
-            // originalData 用于过滤器, 这里只追加, 不完全覆盖
-            if (!originalData) {
-                originalData = { nodes: [], edges: [] };
-            }
-            originalData.nodes.push(...data.nodes);
-            originalData.edges.push(...data.edges);
 
+        // 更新图形显示
+        function updateGraph(data) {
+            graphData = data;
 
             // 处理节点数据
-            const newNodes = data.nodes.map(node => ({
+            const nodes = data.nodes.map(node => ({
                 id: node.id,
                 label: node.label,
                 title: node.title,
@@ -756,31 +691,25 @@
             }));
 
             // 处理边数据
-            const newEdges = data.edges.map(edge => ({
+            const edges = data.edges.map(edge => ({
                 id: edge.id,
                 from: edge.from,
                 to: edge.to,
                 label: edge.label,
                 title: edge.title,
-                width: (edge.importance || 0.5) * 2 + 1
+                width: edge.importance * 3 + 1
             }));
-            
-            // 追加数据到 DataSet
-            if (newNodes.length > 0) {
-                graphData.nodes.add(newNodes);
-            }
-            if (newEdges.length > 0) {
-                graphData.edges.add(newEdges);
-            }
-            
-            // 第一次加载时设置数据
-            if (pagination.nodes.page === 2) { // 意味着第一页刚加载完
-                 network.setData({
-                    nodes: graphData.nodes,
-                    edges: graphData.edges
-                });
-            }
+
+            // 更新网络
+            network.setData({
+                nodes: new vis.DataSet(nodes),
+                edges: new vis.DataSet(edges)
+            });
+
+            // 注意：setData 会自动触发物理引擎重新布局
+            // stabilizationIterationsDone 事件监听器会自动停止物理引擎
         }
+
         // 更新统计信息
         function updateStats(stats) {
             document.getElementById('statNodes').textContent = stats.total_nodes;
@@ -1234,42 +1163,13 @@
                 closeFileSelector();
             }
         }
-// 页面加载完成后初始化
-window.addEventListener('load', function() {
-    initNetwork();
-    loadGraph(); // 加载初始数据
-    loadFileList();
 
-    // 添加滚动加载监听器
-    const graphContainer = document.getElementById('memory-graph');
-    graphContainer.addEventListener('mousewheel', async (event) => {
-        if(network) {
-            const canvasHeight = network.canvas.body.height;
-            const viewPosition = network.getViewPosition();
-            const scale = network.getScale();
-            const viewHeight = canvasHeight / scale;
-
-            // 简单的滚动到底部检测（可能需要根据实际情况微调）
-            if (event.deltaY > 0 && !isLoading) {
-                const isAtBottom = viewPosition.y > (canvasHeight/2 - viewHeight/2) * 0.8;
-                if (isAtBottom) {
-                    console.log("滚动到底部，加载更多数据...");
-                    await loadMoreData();
-                }
-            }
-        }
-    });
-     // 添加一个按钮用于手动加载
-    const loadMoreBtn = document.createElement('button');
-    loadMoreBtn.textContent = '加载更多';
-    loadMoreBtn.className = 'btn';
-    loadMoreBtn.style.position = 'absolute';
-    loadMoreBtn.style.bottom = '20px';
-    loadMoreBtn.style.right = '20px';
-    loadMoreBtn.style.zIndex = '10';
-    loadMoreBtn.onclick = loadMoreData;
-    document.querySelector('.graph-container').appendChild(loadMoreBtn);
-});
+        // 页面加载完成后初始化
+        window.addEventListener('load', function() {
+            initNetwork();
+            loadGraph();
+            loadFileList();
+        });
     </script>
 </body>
 </html>