diff --git a/src/hooks/rain-earthquake/useAroundAnalysis.ts b/src/hooks/rain-earthquake/useAroundAnalysis.ts
index f2d1870..1f92ca4 100644
--- a/src/hooks/rain-earthquake/useAroundAnalysis.ts
+++ b/src/hooks/rain-earthquake/useAroundAnalysis.ts
@@ -51,11 +51,22 @@ export const useAroundAnalysis = (): AroundAnalysisState => {
         const allPoints = loadAllPointData(RESOURCE_CONFIGS);
         const radiusMeters = radiusKm * 1000;
 
-        return allPoints.filter(point => {
+        const filteredPoints = allPoints.filter(point => {
             if (point.lon === undefined || point.lat === undefined) return false;
             const distance = calculateDistance(centerLon, centerLat, point.lon, point.lat);
             return distance <= radiusMeters && isCategoryVisible(point.category as PointResourceCategory, point.originalType);
         });
+
+        // 按坐标去重：相同经纬度的点只保留一个
+        const coordMap = new Map<string, PointResource>();
+        filteredPoints.forEach(point => {
+            const coordKey = `${point.lon},${point.lat}`;
+            if (!coordMap.has(coordKey)) {
+                coordMap.set(coordKey, point);
+            }
+        });
+
+        return Array.from(coordMap.values());
     };
 
     const refreshPulseEffect = () => {