diff --git a/src/components/common/TimeRange/DateTimeRange.vue b/src/components/common/TimeRange/DateTimeRange.vue
index 898d5be3..d78e2497 100644
--- a/src/components/common/TimeRange/DateTimeRange.vue
+++ b/src/components/common/TimeRange/DateTimeRange.vue
@@ -254,7 +254,8 @@ export default {
     const returnValue = () => {
       store.commit('setTimeFilter', { startTime: myStartTime.value, endTime: myEndTime.value, range: dateRangeValue.value })
       cancelHttp()
-      if (rangeHistory.value[0] && rangeHistory.value[0].start !== myStartTime.value && rangeHistory.value[0].end !== myEndTime.value) {
+      const obj = rangeHistory.value.find(d => d.start === myStartTime.value && d.end === myEndTime.value)
+      if (!obj) {
         rangeHistory.value.unshift({
           start: myStartTime.value,
           end: myEndTime.value
diff --git a/src/views/entityExplorer/search/ExplorerSearch.vue b/src/views/entityExplorer/search/ExplorerSearch.vue
index 81bdb93e..85c5ff68 100644
--- a/src/views/entityExplorer/search/ExplorerSearch.vue
+++ b/src/views/entityExplorer/search/ExplorerSearch.vue
@@ -98,7 +98,12 @@ export default {
         const newItem = { str, date: this.dateFormatByAppearance(new Date()) }
         if (!_.isEmpty(oldHistory)) {
           const oldArr = JSON.parse(oldHistory)
-          oldArr.unshift(newItem)
+          const obj = oldArr.find(d => d.str === str)
+          if (obj) {
+            oldArr[0].date = this.dateFormatByAppearance(new Date())
+          } else {
+            oldArr.unshift(newItem)
+          }
           arr = [...oldArr]
           if (arr.length > 30) {
             arr = arr.slice(0, 30)