diff --git a/src/components/device/device-card/ndm-nvr/nvr-history-diag.vue b/src/components/device/device-card/ndm-nvr/nvr-history-diag.vue
index 38e7136..bcfdda4 100644
--- a/src/components/device/device-card/ndm-nvr/nvr-history-diag.vue
+++ b/src/components/device/device-card/ndm-nvr/nvr-history-diag.vue
@@ -42,8 +42,9 @@ const selected = ref([...historyDiagOptions.value.map((option) => `${option.valu
 const loading = ref<boolean>(false);
 const icmpLoading = ref<boolean>(false);
 const alarmLoading = ref<boolean>(false);
+const usageLoading = ref<boolean>(false);
 const diskLoading = ref<boolean>(false);
-watch([icmpLoading, alarmLoading, diskLoading], (loadings) => {
+watch([icmpLoading, alarmLoading, usageLoading, diskLoading], (loadings) => {
   loading.value = loadings.some((loading) => loading);
 });
 const icmpHistoryQueryFn = ref<() => void>();
@@ -103,7 +104,7 @@ onMounted(() => {
       :cpu-usage-field="'stCommonInfo.CPU使用率'"
       :mem-usage-field="'stCommonInfo.内存使用率'"
       v-model:range="range"
-      v-model:loading="alarmLoading"
+      v-model:loading="usageLoading"
       @expose-query-fn="onExposeUsageHistoryQueryFn"
     />
     <NvrDiskHistoryCard v-if="selected.includes('disk')" :ndm-device="ndmDevice" :station="station" v-model:range="range" v-model:loading="diskLoading" @expose-query-fn="onExposeDiskHistoryQueryFn" />