diff --git a/frontend/src/pages/System/Metrics/Dashboard/index.tsx b/frontend/src/pages/System/Metrics/Dashboard/index.tsx
index 725bed10..b30bd2c4 100644
--- a/frontend/src/pages/System/Metrics/Dashboard/index.tsx
+++ b/frontend/src/pages/System/Metrics/Dashboard/index.tsx
@@ -147,11 +147,27 @@ const MetricsDashboard: React.FC = () => {
     }, [autoRefresh, loadMetrics]);
 
     // 格式化字节为 GB（统一单位）
-    const formatBytes = (bytes: number): string => {
+    // 处理 JVM 返回 -1 表示"无限制"的情况
+    const formatBytes = (bytes: number, showUnlimited: boolean = false): string => {
+        if (bytes < 0) {
+            return showUnlimited ? '无限制' : '-';
+        }
         const gb = bytes / 1024 / 1024 / 1024;
         return `${gb.toFixed(2)} GB`;
     };
 
+    // 计算内存使用百分比（处理 max 为 -1 或 0 的情况）
+    const calcMemoryPercent = (used: number, max: number, committed?: number): number => {
+        if (max > 0) {
+            return (used / max) * 100;
+        }
+        // 如果 max 无效，使用 committed 作为参考
+        if (committed && committed > 0) {
+            return (used / committed) * 100;
+        }
+        return 0;
+    };
+
     // 格式化百分比
     const formatPercent = (value: number): string => {
         return value.toFixed(2);
@@ -203,22 +219,22 @@ const MetricsDashboard: React.FC = () => {
                 regions: metrics.memory.regions ? {
                     eden: metrics.memory.regions.eden ? {
                         used: formatBytes(metrics.memory.regions.eden.used),
-                        max: formatBytes(metrics.memory.regions.eden.max),
+                        max: formatBytes(metrics.memory.regions.eden.max, true),
                         committed: formatBytes(metrics.memory.regions.eden.committed),
                     } : null,
                     oldGen: metrics.memory.regions.oldGen ? {
                         used: formatBytes(metrics.memory.regions.oldGen.used),
-                        max: formatBytes(metrics.memory.regions.oldGen.max),
+                        max: formatBytes(metrics.memory.regions.oldGen.max, true),
                         committed: formatBytes(metrics.memory.regions.oldGen.committed),
                     } : null,
                     survivor: metrics.memory.regions.survivor ? {
                         used: formatBytes(metrics.memory.regions.survivor.used),
-                        max: formatBytes(metrics.memory.regions.survivor.max),
+                        max: formatBytes(metrics.memory.regions.survivor.max, true),
                         committed: formatBytes(metrics.memory.regions.survivor.committed),
                     } : null,
                     metaspace: metrics.memory.regions.metaspace ? {
                         used: formatBytes(metrics.memory.regions.metaspace.used),
-                        max: formatBytes(metrics.memory.regions.metaspace.max),
+                        max: formatBytes(metrics.memory.regions.metaspace.max, true),
                         committed: formatBytes(metrics.memory.regions.metaspace.committed),
                     } : null,
                 } : null,
@@ -604,10 +620,14 @@ const MetricsDashboard: React.FC = () => {
                                         </div>
                                         <div className="flex justify-between">
                                             <span className="text-muted-foreground">最大:</span>
-                                            <span className="font-medium">{formatBytes(metrics.memory.regions.eden.max)}</span>
+                                            <span className="font-medium">{formatBytes(metrics.memory.regions.eden.max, true)}</span>
                                         </div>
                                         <Progress 
-                                            value={(metrics.memory.regions.eden.used / metrics.memory.regions.eden.max) * 100} 
+                                            value={calcMemoryPercent(
+                                                metrics.memory.regions.eden.used, 
+                                                metrics.memory.regions.eden.max,
+                                                metrics.memory.regions.eden.committed
+                                            )} 
                                             className="h-1 mt-2"
                                         />
                                     </div>
@@ -629,10 +649,14 @@ const MetricsDashboard: React.FC = () => {
                                         </div>
                                         <div className="flex justify-between">
                                             <span className="text-muted-foreground">最大:</span>
-                                            <span className="font-medium">{formatBytes(metrics.memory.regions.oldGen.max)}</span>
+                                            <span className="font-medium">{formatBytes(metrics.memory.regions.oldGen.max, true)}</span>
                                         </div>
                                         <Progress 
-                                            value={(metrics.memory.regions.oldGen.used / metrics.memory.regions.oldGen.max) * 100} 
+                                            value={calcMemoryPercent(
+                                                metrics.memory.regions.oldGen.used, 
+                                                metrics.memory.regions.oldGen.max,
+                                                metrics.memory.regions.oldGen.committed
+                                            )} 
                                             className="h-1 mt-2"
                                         />
                                     </div>
@@ -654,10 +678,14 @@ const MetricsDashboard: React.FC = () => {
                                         </div>
                                         <div className="flex justify-between">
                                             <span className="text-muted-foreground">最大:</span>
-                                            <span className="font-medium">{formatBytes(metrics.memory.regions.survivor.max)}</span>
+                                            <span className="font-medium">{formatBytes(metrics.memory.regions.survivor.max, true)}</span>
                                         </div>
                                         <Progress 
-                                            value={(metrics.memory.regions.survivor.used / metrics.memory.regions.survivor.max) * 100} 
+                                            value={calcMemoryPercent(
+                                                metrics.memory.regions.survivor.used, 
+                                                metrics.memory.regions.survivor.max,
+                                                metrics.memory.regions.survivor.committed
+                                            )} 
                                             className="h-1 mt-2"
                                         />
                                     </div>
@@ -679,10 +707,14 @@ const MetricsDashboard: React.FC = () => {
                                         </div>
                                         <div className="flex justify-between">
                                             <span className="text-muted-foreground">最大:</span>
-                                            <span className="font-medium">{formatBytes(metrics.memory.regions.metaspace.max)}</span>
+                                            <span className="font-medium">{formatBytes(metrics.memory.regions.metaspace.max, true)}</span>
                                         </div>
                                         <Progress 
-                                            value={(metrics.memory.regions.metaspace.used / metrics.memory.regions.metaspace.max) * 100} 
+                                            value={calcMemoryPercent(
+                                                metrics.memory.regions.metaspace.used, 
+                                                metrics.memory.regions.metaspace.max,
+                                                metrics.memory.regions.metaspace.committed
+                                            )} 
                                             className="h-1 mt-2"
                                         />
                                     </div>