diff --git a/docs/content.en/docs/release-notes/_index.md b/docs/content.en/docs/release-notes/_index.md
index 009a31cf..439d9ed8 100644
--- a/docs/content.en/docs/release-notes/_index.md
+++ b/docs/content.en/docs/release-notes/_index.md
@@ -18,9 +18,11 @@ Information about release notes of INFINI Console is provided here.
 ### Bug fix
 - Fixed the error when querying empty metric data (#144)
 - Fixed empty host when setup step finishes (#147)
+- Fixed the error of obtaining suggestions of field's value in discover
 
 ### Improvements
 - Update agent config with cluster name (#148)
+- Optimize UI of histogram and datepicker in discover (#151)
 - Support viewing logs for cluster, node, index health change events (#150)
 
 ## 1.28.2 (2025-02-15)
diff --git a/docs/content.zh/docs/release-notes/_index.md b/docs/content.zh/docs/release-notes/_index.md
index 6989451f..d1cf4fab 100644
--- a/docs/content.zh/docs/release-notes/_index.md
+++ b/docs/content.zh/docs/release-notes/_index.md
@@ -18,12 +18,13 @@ title: "版本历史"
 ### Bug fix
 - 修复指标数据为空时的查询错误 (#144)
 - 修复初始化结束步骤中主机显示为错误的问题 (#147)
+- 修复数据探索中获取字段值建议的错误
 
 ### Improvements
 - 优化下发给 Agent 的配置，增加集群名称 (#148)
+- 优化柱状图和时间选择器的 UI (#151)
 - 集群，节点，索引健康状态变更支持查看日志 (#150)
 
-
 ## 1.28.2 (2025-02-15)
 
 ### Features
diff --git a/web/src/common/src/DatePicker/index.jsx b/web/src/common/src/DatePicker/index.jsx
index 2e57d362..b4292d08 100644
--- a/web/src/common/src/DatePicker/index.jsx
+++ b/web/src/common/src/DatePicker/index.jsx
@@ -215,7 +215,7 @@ const DatePicker = (props) => {
         isMinimum ? styles.minimum : ""
       } ${className}`}
     >
-      <Button.Group className={styles.RangeBox}>
+      <Button.Group className={styles.RangeBox} style={{ width: onRefresh ? 'calc(100% - 64px)' : 'calc(100% - 32px)'}}>
         {!isMinimum && (
           <Button
             className={`${styles.iconBtn} common-ui-datepicker-backward`}
diff --git a/web/src/common/src/DatePicker/index.less b/web/src/common/src/DatePicker/index.less
index bbf070cf..9cd96bcc 100644
--- a/web/src/common/src/DatePicker/index.less
+++ b/web/src/common/src/DatePicker/index.less
@@ -42,8 +42,8 @@
     align-items: center;
     margin-left: 4px !important;
     .play {
-      min-width: 30px;
-      max-width: 30px;
+      min-width: 32px;
+      max-width: 32px;
       padding: 0;
       font-size: 14px;
       color: #1890ff;
diff --git a/web/src/components/vendor/data/public/ui/filter_bar/filter_bar.tsx b/web/src/components/vendor/data/public/ui/filter_bar/filter_bar.tsx
index c6aee8a9..5e771bcd 100644
--- a/web/src/components/vendor/data/public/ui/filter_bar/filter_bar.tsx
+++ b/web/src/components/vendor/data/public/ui/filter_bar/filter_bar.tsx
@@ -121,6 +121,9 @@ function FilterBarUI(props: Props) {
                 onCancel={() => setIsAddFilterPopoverOpen(false)}
                 key={JSON.stringify(newFilter)}
                 services={props.services}
+                dateRangeFrom={props.dateRangeFrom}
+                dateRangeTo={props.dateRangeTo}
+                timeField={props.timeField}
               />
             </div>
           </EuiFlexItem>
diff --git a/web/src/components/vendor/data/public/ui/filter_bar/filter_editor/index.tsx b/web/src/components/vendor/data/public/ui/filter_bar/filter_editor/index.tsx
index c6ff8841..bec4cf3d 100644
--- a/web/src/components/vendor/data/public/ui/filter_bar/filter_editor/index.tsx
+++ b/web/src/components/vendor/data/public/ui/filter_bar/filter_editor/index.tsx
@@ -313,6 +313,9 @@ class FilterEditorUI extends Component<Props, State> {
             onChange={this.onParamsChange}
             data-test-subj="phraseValueInput"
             services={this.props.services}
+            dateRangeFrom={this.props.dateRangeFrom}
+            dateRangeTo={this.props.dateRangeTo}
+            timeField={this.props.timeField}
           />
         );
       case 'phrases':
@@ -323,6 +326,9 @@ class FilterEditorUI extends Component<Props, State> {
             values={this.state.params}
             onChange={this.onParamsChange}
             services={this.props.services}
+            dateRangeFrom={this.props.dateRangeFrom}
+            dateRangeTo={this.props.dateRangeTo}
+            timeField={this.props.timeField}
           />
         );
       case 'range':
diff --git a/web/src/components/vendor/data/public/ui/filter_bar/filter_editor/phrase_suggestor.tsx b/web/src/components/vendor/data/public/ui/filter_bar/filter_editor/phrase_suggestor.tsx
index 89f4bb01..e5d0a31e 100644
--- a/web/src/components/vendor/data/public/ui/filter_bar/filter_editor/phrase_suggestor.tsx
+++ b/web/src/components/vendor/data/public/ui/filter_bar/filter_editor/phrase_suggestor.tsx
@@ -82,17 +82,30 @@ export class PhraseSuggestorUI<
   protected updateSuggestions = debounce(async (query: string = "") => {
     if (this.abortController) this.abortController.abort();
     this.abortController = new AbortController();
-    const { indexPattern, field } = this.props as PhraseSuggestorProps;
+    const { indexPattern, field, dateRangeFrom, dateRangeTo, timeField } = this.props as PhraseSuggestorProps;
     if (!field || !this.isSuggestingValues()) {
       return;
     }
     this.setState({ isLoading: true });
 
+    const boolFilter = []
+    if (dateRangeFrom && dateRangeTo && timeField) {
+      boolFilter.push({
+        "range": {
+          [timeField]: {
+            "gte": dateRangeFrom,
+            "lte": dateRangeTo
+          }
+        }
+      })
+    }
+
     const suggestions = await this.props.services.data.autocomplete.getValueSuggestions(
       {
         indexPattern,
         field,
         query,
+        boolFilter,
         signal: this.abortController.signal,
       }
     );
diff --git a/web/src/components/vendor/data/public/ui/filter_bar/filter_editor/phrase_value_input.tsx b/web/src/components/vendor/data/public/ui/filter_bar/filter_editor/phrase_value_input.tsx
index a26f6a07..e5b8ca1c 100644
--- a/web/src/components/vendor/data/public/ui/filter_bar/filter_editor/phrase_value_input.tsx
+++ b/web/src/components/vendor/data/public/ui/filter_bar/filter_editor/phrase_value_input.tsx
@@ -50,8 +50,7 @@ class PhraseValueInputUI extends PhraseSuggestorUI<Props> {
   }
 
   private renderWithSuggestions() {
-    let { suggestions } = this.state;
-    suggestions = suggestions || [];
+    const suggestions = Array.isArray(this.state.suggestions) ? this.state.suggestions : []
     const { value, intl, onChange } = this.props;
     // there are cases when the value is a number, this would cause an exception
     const valueAsStr = String(value);
diff --git a/web/src/components/vendor/data/public/ui/query_string_input/_query_bar.scss b/web/src/components/vendor/data/public/ui/query_string_input/_query_bar.scss
index a9f81445..51d4fee5 100644
--- a/web/src/components/vendor/data/public/ui/query_string_input/_query_bar.scss
+++ b/web/src/components/vendor/data/public/ui/query_string_input/_query_bar.scss
@@ -59,7 +59,7 @@
 @include euiBreakpoint("m", "l", "xl") {
   .kbnQueryBar__datePickerWrapper {
     // sass-lint:disable-block no-important
-    max-width: 340px;
+    max-width: 400px;
     flex-grow: 0 !important;
     flex-basis: auto !important;
     margin-right: -$euiSizeXS;
diff --git a/web/src/components/vendor/data/public/ui/query_string_input/query_bar_top_row.tsx b/web/src/components/vendor/data/public/ui/query_string_input/query_bar_top_row.tsx
index a3e84471..091c9b88 100644
--- a/web/src/components/vendor/data/public/ui/query_string_input/query_bar_top_row.tsx
+++ b/web/src/components/vendor/data/public/ui/query_string_input/query_bar_top_row.tsx
@@ -264,7 +264,7 @@ export default function QueryBarTopRow(props: QueryBarTopRowProps) {
     return (
       <NoDataPopover storage={storage} showNoDataPopover={props.indicateNoData}>
         <EuiFlexGroup responsive={false} gutterSize="s">
-          {renderHistogram()}
+          {/* {renderHistogram()} */}
           {renderDatePicker()}
           <EuiFlexItem grow={false}>{button}</EuiFlexItem>
         </EuiFlexGroup>
diff --git a/web/src/components/vendor/data/public/ui/search_bar/search_bar.tsx b/web/src/components/vendor/data/public/ui/search_bar/search_bar.tsx
index 4f6eb0a8..9f4f400f 100644
--- a/web/src/components/vendor/data/public/ui/search_bar/search_bar.tsx
+++ b/web/src/components/vendor/data/public/ui/search_bar/search_bar.tsx
@@ -484,6 +484,9 @@ class SearchBarUI extends Component<SearchBarProps, State> {
               filters={this.props.filters!}
               onFiltersUpdated={this.props.onFiltersUpdated}
               indexPatterns={this.props.indexPatterns!}
+              dateRangeFrom={this.state.dateRangeFrom}
+              dateRangeTo={this.state.dateRangeTo}
+              timeField={this.props.timeSetting?.timeField}
               services={this.props.services}
             />
           </div>
diff --git a/web/src/pages/DataManagement/Discover.jsx b/web/src/pages/DataManagement/Discover.jsx
index a73cdab4..cccd8fb0 100644
--- a/web/src/pages/DataManagement/Discover.jsx
+++ b/web/src/pages/DataManagement/Discover.jsx
@@ -1122,7 +1122,7 @@ const Discover = (props) => {
             getVisualizations={() => visRef?.current?.getVisualizations()}
             searchInfo={{
               took,
-              hits,
+              total: hits,
               ...timeChartProps,
             }}
             selectedQueriesId={selectedQueriesId}
@@ -1160,6 +1160,10 @@ const Discover = (props) => {
               }
             }}
             showLayoutListIcon={false}
+            histogramProps={{
+              histogramData,
+              timefilterUpdateHandler
+            }}
             // viewLayout={viewLayout}
             // onViewLayoutChange={(layout) => {
             //   if (layout) {
diff --git a/web/src/pages/DataManagement/Insight/Histogram/index.jsx b/web/src/pages/DataManagement/Insight/Histogram/index.jsx
new file mode 100644
index 00000000..a698e154
--- /dev/null
+++ b/web/src/pages/DataManagement/Insight/Histogram/index.jsx
@@ -0,0 +1,29 @@
+import { DiscoverHistogram } from "@/components/vendor/discover/public/application/components/histogram/histogram";
+import { Icon, Popover } from "antd"
+import { useEffect, useRef, useState } from "react";
+import styles from "./index.less";
+
+export default (props) => {
+
+    const { histogramData, timefilterUpdateHandler } = props
+
+    const [visible, setVisible] = useState(false)
+
+    return (
+        <Popover 
+            visible={visible} 
+            placement="left" 
+            title={null} 
+            overlayClassName={styles.histogram}
+            content={(
+                <DiscoverHistogram
+                    chartData={histogramData}
+                    timefilterUpdateHandler={timefilterUpdateHandler}
+                />
+        )}>
+            <Icon type="bar-chart" style={{color: '#006BB4', cursor: 'pointer'}} onClick={() => {
+                setVisible(!visible)
+            }}/>
+        </Popover>
+    )
+}
\ No newline at end of file
diff --git a/web/src/pages/DataManagement/Insight/Histogram/index.less b/web/src/pages/DataManagement/Insight/Histogram/index.less
new file mode 100644
index 00000000..b305c53d
--- /dev/null
+++ b/web/src/pages/DataManagement/Insight/Histogram/index.less
@@ -0,0 +1,9 @@
+.histogram {
+    z-index: 1;
+    :global {
+        .ant-popover-inner-content {
+            width: 400px;
+            padding: 0;
+        }
+    }
+}
\ No newline at end of file
diff --git a/web/src/pages/DataManagement/Insight/InsightBar/index.tsx b/web/src/pages/DataManagement/Insight/InsightBar/index.tsx
index 50f24e3d..16c541b2 100644
--- a/web/src/pages/DataManagement/Insight/InsightBar/index.tsx
+++ b/web/src/pages/DataManagement/Insight/InsightBar/index.tsx
@@ -5,9 +5,9 @@ import InsightConfig, { ISearchConfig } from "../InsightConfig";
 import styles from './index.less';
 import { create, list, remove, update } from "../services/queries";
 import FullScreen from "../FullScreen";
-import ModeHandler from "../ModeHandler";
 import { Icon, message } from "antd";
 import SearchInfo from "../SearchInfo";
+import Histogram from "../Histogram";
 import ViewLayout from "../ViewLayout";
 
 export interface IQueries {
@@ -72,7 +72,8 @@ export default forwardRef((props: IProps, ref: any) => {
     onSearchConfigChange,
     showLayoutListIcon,
     viewLayout,
-    onViewLayoutChange
+    onViewLayoutChange,
+    histogramProps = {}
   } = props;
 
   const {
@@ -183,6 +184,7 @@ export default forwardRef((props: IProps, ref: any) => {
   return (
     <div className={styles.bar}>
       <SearchInfo {...searchInfo} loading={searchLoading}/>
+      { histogramProps?.histogramData && <Histogram {...histogramProps}/>}
       <SaveQueries
         tags={tags} 
         onTagsChange={setTags} 
diff --git a/web/src/pages/DataManagement/Insight/SearchInfo/Info.tsx b/web/src/pages/DataManagement/Insight/SearchInfo/Info.tsx
index 7824cfd3..e527ab52 100644
--- a/web/src/pages/DataManagement/Insight/SearchInfo/Info.tsx
+++ b/web/src/pages/DataManagement/Insight/SearchInfo/Info.tsx
@@ -30,7 +30,7 @@ export interface IProps {
    * selected interval
    */
   stateInterval: string;
-  hits: number;
+  total: number;
   took?: number;
 }
 
@@ -39,7 +39,7 @@ export default ({
   dateFormat,
   timeRange,
   stateInterval,
-  hits,
+  total,
   took,
 }: IProps) => {
   const [interval, setInterval] = useState(stateInterval);
@@ -69,7 +69,7 @@ export default ({
     >
       <EuiFlexItem grow={false}>
         <div style={{ fontSize: 12}}>
-          Found <span style={{fontWeight: "bold" }}>{hits}</span>{" "}
+          Found <span style={{fontWeight: "bold" }}>{total}</span>{" "}
           records {took && (
             <span style={{marginLeft: 5 }}>
               ({took} milliscond)
diff --git a/web/src/pages/DataManagement/Insight/SearchInfo/index.tsx b/web/src/pages/DataManagement/Insight/SearchInfo/index.tsx
index dd63b48f..1e7b783a 100644
--- a/web/src/pages/DataManagement/Insight/SearchInfo/index.tsx
+++ b/web/src/pages/DataManagement/Insight/SearchInfo/index.tsx
@@ -1,17 +1,40 @@
 import { Icon, Popover } from "antd"
-import { useState } from "react";
+import { useEffect, useRef, useState } from "react";
 import Info, { IProps } from "./Info";
 import styles from './index.scss';
 
 export default (props: IProps & { loading: boolean }) => {
 
+    const { loading, total } = props
+
     const [showResultCount, setShowResultCount] = useState(true);
+    const timerRef = useRef(null)
+    const autoHiddenRef = useRef(true)
+
+    useEffect(() => {
+        if (timerRef.current) {
+            clearTimeout(timerRef.current)
+        }
+        if (showResultCount) {
+            timerRef.current = setTimeout(() => {
+                if (autoHiddenRef.current) {
+                    setShowResultCount(false)
+                }
+            }, 3000);
+        }
+    }, [showResultCount])
+
+    useEffect(() => {
+        if (loading) {
+            autoHiddenRef.current = true
+        }
+    }, [loading])
 
-    if (typeof props.hits !== 'number' || props.hits <= 0) return null; 
+    if (typeof total !== 'number' || total <= 0) return null; 
 
     return (
         <Popover 
-            visible={!props.loading && showResultCount} 
+            visible={!loading && showResultCount} 
             placement="left" 
             title={null} 
             overlayClassName={styles.searchInfo}
@@ -21,7 +44,14 @@ export default (props: IProps & { loading: boolean }) => {
                 dateFormat={"YYYY-MM-DD H:mm"}
             />
         )}>
-            <Icon type="info-circle" style={{color: '#006BB4', cursor: 'pointer'}} onClick={() => setShowResultCount(!showResultCount)}/>
+            <Icon type="info-circle" style={{color: '#006BB4', cursor: 'pointer'}} onClick={() => {
+                if (showResultCount) {
+                    autoHiddenRef.current = true
+                } else {
+                    autoHiddenRef.current = false
+                }
+                setShowResultCount(!showResultCount)
+            }}/>
         </Popover>
     )
 }
\ No newline at end of file