diff --git a/frontend/Skyeye-sys-ui/src/views/home/components/twin-situation/index.js b/frontend/Skyeye-sys-ui/src/views/home/components/twin-situation/index.js
index dad00ed..73bab2f 100644
--- a/frontend/Skyeye-sys-ui/src/views/home/components/twin-situation/index.js
+++ b/frontend/Skyeye-sys-ui/src/views/home/components/twin-situation/index.js
@@ -54,6 +54,7 @@ let sceneEntity = {}
 let taskListResource = []
 let orthoManager = null
 let socketPositionIndex = 0
+let uavTracks = {}
 const lang = window.localStorage.getItem('locale') || 'zh_CN'
 export default {
   name: 'TwinSituation',
@@ -481,6 +482,7 @@ export default {
     this.SET_SPLIT_VISIBLE(false)
     this.removePictureHandle()
     socketPositionIndex = 0
+    uavTracks = {}
     if (orthoManager) {
       orthoManager.clearAll()
       orthoManager = null
@@ -1099,6 +1101,7 @@ export default {
           let data = res.data.data
           let list = []
           socketPositionIndex = 0
+          uavTracks = {}
           data.forEach(item => {
             // item.check = item.status === 1 || item.status === 3
             item.check = false
@@ -1582,6 +1585,7 @@ export default {
         // }
         this.removeTaskTarget(info.id);
         socketPositionIndex = 0
+        uavTracks = {}
         if (orthoManager) {
           orthoManager.clearAll()
           orthoManager = null
@@ -1614,7 +1618,9 @@ export default {
                 viewer.entities.remove(item)
               }
             })
+            viewer.entities
             socketPositionIndex = 0
+            uavTracks = {}
             if (orthoManager) {
               orthoManager.clearAll()
               orthoManager = null
@@ -2786,51 +2792,78 @@ export default {
       this.updateSceneUav(data)
     },
     updateSceneUav(data) {
-      console.log(data, 44444);
+      // 1. 坐标转换（建议添加异常处理，避免非法坐标）
+      if (!data.longitude || !data.latitude) {
+        console.warn('无人机坐标不完整', data);
+        return;
+      }
+      let position = DT.Cesium.Cartesian3.fromDegrees(
+        Number(data.longitude),
+        Number(data.latitude),
+        Number(data.altitude) || 0 // 高度默认0，避免undefined
+      );
+      let uavId = 'uav-' + data.jobId;
 
-      let position = DT.Cesium.Cartesian3.fromDegrees(data.longitude, data.latitude, data.altitude)
-      let entity = viewer.entities.getById('uav-' + data.id)
+      // 2. 轨迹数组维护（过滤重复坐标，避免无长度轨迹）
+      if (uavTracks[uavId]) {
+        // 获取最后一个坐标，计算与新坐标的距离（小于1米则不添加）
+        const lastPos = uavTracks[uavId][uavTracks[uavId].length - 1];
+        const distance = lastPos ? DT.Cesium.Cartesian3.distance(lastPos, position) : 0;
+        // 只有距离大于1米时才添加新坐标，避免高频重复
+        if (distance > 1) {
+          uavTracks[uavId].push(position);
+          // 限制轨迹长度，避免数组过大（可选，比如最多保存1000个点）
+          if (uavTracks[uavId].length > 1000) {
+            uavTracks[uavId].shift();
+          }
+        }
+      } else {
+        uavTracks[uavId] = [position];
+      }
+      // 3. 获取/创建无人机实体
+      let entity = viewer.entities.getById(uavId);
       if (entity) {
-        entity.position = position
+        entity.position = position;
+        // ！关键：更新实体后主动触发Cesium重绘（部分版本需要）
+        viewer.scene.requestRender();
       } else {
         entity = viewer.entities.add({
-          id: 'uav-' + data.id,
+          id: uavId,
           position: position,
           label: {
             text: '无人机',
             font: '14px sans-serif',
-            fillColor: DT.Cesium.Color.WHITE,
+            fillColor: DT.Cesium.Color.RED,
             horizontalOrigin: DT.Cesium.HorizontalOrigin.LEFT,
             verticalOrigin: DT.Cesium.VerticalOrigin.CENTER,
             disableDepthTestDistance: 100000,
-            pixelOffset: new DT.Cesium.Cartesian2(10, 0),
             showBackground: true,
             scaleByDistance: new DT.Cesium.NearFarScalar(0, 1, 1, 0.8),
-            distanceDisplayCondition: new DT.Cesium.DistanceDisplayCondition(0, 20000),
-            backgroundColor: DT.Cesium.Color.fromCssColorString('rgba(0,0,0,0.7)'),
-            style: DT.Cesium.LabelStyle.FILL_AND_OUTLINE,
+            distanceDisplayCondition: new DT.Cesium.DistanceDisplayCondition(0, 10000),
+            backgroundColor: DT.Cesium.Color.fromCssColorString('rgba(255,255,255,0.6)'),
+            pixelOffset: new DT.Cesium.Cartesian2(10, -15),
           },
           model: {
             uri: process.env.BASE_URL + 'model/uav.gltf',
             minimumPixelSize: 64,
             maximumScale: 128,
           },
-          // point: {
-          //   pixelSize: 40,
-          //   color: DT.Cesium.Color.RED,
-          //   disableDepthTestDistance: 10000
-          // },
           polyline: {
-            positions: new DT.Cesium.CallbackProperty(function () {
-              return this.positions
+            // 修复：绑定uavId到回调作用域，避免丢失
+            positions: new DT.Cesium.CallbackProperty(() => {
+              return uavTracks[uavId] || [];
             }, false),
-            width: 8,
-            zIndex: 600,
-            material: DT.Cesium.Color.BLACK,
-            depthFailMaterial: DT.Cesium.Color.CYAN,
-            arcType: DT.Cesium.ArcType.NONE
+            width: 2,          // 线宽加大，更容易观察
+            zIndex: 600,       // 提高层级，避免被其他元素覆盖
+            material: DT.Cesium.Color.fromCssColorString('#1fe46b'), // 半透明，更易见
+            depthFailMaterial: DT.Cesium.Color.CYAN.withAlpha(0.8),
+            arcType: DT.Cesium.ArcType.NONE, // 关键：添加直线轨迹配置
+            disableDepthTestDistance: Number.POSITIVE_INFINITY, // 永不被遮挡
+            distanceDisplayCondition: new DT.Cesium.DistanceDisplayCondition(0, 50000), // 扩大显示范围
+            clampToGround: false, // 不贴地，跟随无人机高度
+            show: true // 显式开启，避免默认隐藏
           }
-        })
+        });
       }
     },
     handleWebsocketWave(info) {
@@ -3090,6 +3123,7 @@ export default {
             }
           })
           socketPositionIndex = 0
+          uavTracks = {}
           if (orthoManager) {
             orthoManager.clearAll()
             orthoManager = null