diff --git a/src/views/statistics/AuvStatistics.vue b/src/views/statistics/AuvStatistics.vue
index bd2063f..c4703ef 100644
--- a/src/views/statistics/AuvStatistics.vue
+++ b/src/views/statistics/AuvStatistics.vue
@@ -139,7 +139,16 @@ export default {
     });
   },
   beforeDestroy() {
-
+    const unitMap = Vue.config.maps && Vue.config.maps['workUnitMap_auv']
+    if (unitMap) {
+      unitMap.remove()
+      delete Vue.config.maps['workUnitMap_auv']
+    }
+    const voyageMap = Vue.config.maps && Vue.config.maps['voyageMap_auv']
+    if (voyageMap) {
+      voyageMap.remove()
+      delete Vue.config.maps['voyageMap_auv']
+    }
   },
   methods: {
     // 无人航行潜水器数据
diff --git a/src/views/statistics/HovStatistics.vue b/src/views/statistics/HovStatistics.vue
index 1df0cf7..d1bb7b3 100644
--- a/src/views/statistics/HovStatistics.vue
+++ b/src/views/statistics/HovStatistics.vue
@@ -137,7 +137,16 @@ export default {
     });
   },
   beforeDestroy() {
-
+    const unitMap = Vue.config.maps && Vue.config.maps['workUnitMap_hov']
+    if (unitMap) {
+      unitMap.remove()
+      delete Vue.config.maps['workUnitMap_hov']
+    }
+    const voyageMap = Vue.config.maps && Vue.config.maps['voyageMap_hov']
+    if (voyageMap) {
+      voyageMap.remove()
+      delete Vue.config.maps['voyageMap_hov']
+    }
   },
   methods: {
     // 载人潜水器数据
diff --git a/src/views/statistics/RovStatistics.vue b/src/views/statistics/RovStatistics.vue
index dfe223a..2d8a171 100644
--- a/src/views/statistics/RovStatistics.vue
+++ b/src/views/statistics/RovStatistics.vue
@@ -139,7 +139,16 @@ export default {
     });
   },
   beforeDestroy() {
-
+    const unitMap = Vue.config.maps && Vue.config.maps['workUnitMap_rov']
+    if (unitMap) {
+      unitMap.remove()
+      delete Vue.config.maps['workUnitMap_rov']
+    }
+    const voyageMap = Vue.config.maps && Vue.config.maps['voyageMap_rov']
+    if (voyageMap) {
+      voyageMap.remove()
+      delete Vue.config.maps['voyageMap_rov']
+    }
   },
   methods: {
     // 遥控潜水器数据
diff --git a/src/views/statistics/ShipStatistics.vue b/src/views/statistics/ShipStatistics.vue
index b00ab75..010b23c 100644
--- a/src/views/statistics/ShipStatistics.vue
+++ b/src/views/statistics/ShipStatistics.vue
@@ -150,7 +150,16 @@ export default {
     });
   },
   beforeDestroy() {
-
+    const unitMap = Vue.config.maps && Vue.config.maps['workUnitMap_ship']
+    if (unitMap) {
+      unitMap.remove()
+      delete Vue.config.maps['workUnitMap_ship']
+    }
+    const voyageMap = Vue.config.maps && Vue.config.maps['voyageMap_ship']
+    if (voyageMap) {
+      voyageMap.remove()
+      delete Vue.config.maps['voyageMap_ship']
+    }
   },
   methods: {
     // 科考船数据