diff --git a/app/src/main/java/com/casic/xz/meterage/utils/DataBaseManager.kt b/app/src/main/java/com/casic/xz/meterage/utils/DataBaseManager.kt
index 52fe032..d4a45ea 100644
--- a/app/src/main/java/com/casic/xz/meterage/utils/DataBaseManager.kt
+++ b/app/src/main/java/com/casic/xz/meterage/utils/DataBaseManager.kt
@@ -26,7 +26,18 @@
         bean.searchType = searchType
         bean.userId = userId.toString()
         bean.searchTime = System.currentTimeMillis().timestampToCompleteDate()
-        searchBeanDao.insert(bean)
+        if (!isKeywordsExist(keywords, searchType)) {
+            searchBeanDao.insert(bean)
+        }
+    }
+
+    private fun isKeywordsExist(keywords: String, searchType: String): Boolean {
+        val count = searchBeanDao.queryBuilder().where(
+            SearchHistoryBeanDao.Properties.UserId.eq(userId),
+            SearchHistoryBeanDao.Properties.Keywords.eq(keywords),
+            SearchHistoryBeanDao.Properties.SearchType.eq(searchType)
+        ).count()
+        return count.toInt() != 0
     }
 
     fun queryHistoryByType(searchType: String): MutableList<SearchHistoryBean> {

diff --git a/app/src/main/java/com/casic/xz/meterage/utils/DataBaseManager.kt b/app/src/main/java/com/casic/xz/meterage/utils/DataBaseManager.kt
index 52fe032..d4a45ea 100644
--- a/app/src/main/java/com/casic/xz/meterage/utils/DataBaseManager.kt
+++ b/app/src/main/java/com/casic/xz/meterage/utils/DataBaseManager.kt
@@ -26,7 +26,18 @@
         bean.searchType = searchType
         bean.userId = userId.toString()
         bean.searchTime = System.currentTimeMillis().timestampToCompleteDate()
-        searchBeanDao.insert(bean)
+        if (!isKeywordsExist(keywords, searchType)) {
+            searchBeanDao.insert(bean)
+        }
+    }
+
+    private fun isKeywordsExist(keywords: String, searchType: String): Boolean {
+        val count = searchBeanDao.queryBuilder().where(
+            SearchHistoryBeanDao.Properties.UserId.eq(userId),
+            SearchHistoryBeanDao.Properties.Keywords.eq(keywords),
+            SearchHistoryBeanDao.Properties.SearchType.eq(searchType)
+        ).count()
+        return count.toInt() != 0
     }
 
     fun queryHistoryByType(searchType: String): MutableList<SearchHistoryBean> {
diff --git a/app/src/main/res/drawable/ic_delete.xml b/app/src/main/res/drawable/ic_delete.xml
index 1810342..16123df 100644
--- a/app/src/main/res/drawable/ic_delete.xml
+++ b/app/src/main/res/drawable/ic_delete.xml
@@ -1,9 +1,18 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="@dimen/pngSize"
-    android:height="@dimen/pngSize"
+    android:width="128dp"
+    android:height="128dp"
     android:viewportWidth="1024"
     android:viewportHeight="1024">
     <path
         android:fillColor="@color/gray"
-        android:pathData="M426.7,227.6v-28.4A28.4,28.4 0,0 1,455.1 170.7h113.8a28.4,28.4 0,0 1,28.4 28.4L597.3,227.6h170.7a28.4,28.4 0,1 1,0 56.9h-512a28.4,28.4 0,0 1,0 -56.9h170.7zM341.3,341.3h341.3a56.9,56.9 0,0 1,56.9 56.9v398.2a56.9,56.9 0,0 1,-56.9 56.9L341.3,853.3a56.9,56.9 0,0 1,-56.9 -56.9L284.4,398.2a56.9,56.9 0,0 1,56.9 -56.9zM398.2,455.1a28.4,28.4 0,0 0,-28.4 28.4v227.6a28.4,28.4 0,1 0,56.9 0v-227.6A28.4,28.4 0,0 0,398.2 455.1zM512,455.1a28.4,28.4 0,0 0,-28.4 28.4v227.6a28.4,28.4 0,1 0,56.9 0v-227.6A28.4,28.4 0,0 0,512 455.1zM625.8,455.1a28.4,28.4 0,0 0,-28.4 28.4v227.6a28.4,28.4 0,1 0,56.9 0v-227.6A28.4,28.4 0,0 0,625.8 455.1z" />
+        android:pathData="M768,384c-19.2,0 -32,12.8 -32,32l0,377.6c0,25.6 -19.2,38.4 -38.4,38.4L326.4,832c-25.6,0 -38.4,-19.2 -38.4,-38.4L288,416C288,396.8 275.2,384 256,384S224,396.8 224,416l0,377.6c0,57.6 44.8,102.4 102.4,102.4l364.8,0c57.6,0 102.4,-44.8 102.4,-102.4L793.6,416C800,396.8 787.2,384 768,384z" />
+    <path
+        android:fillColor="@color/gray"
+        android:pathData="M460.8,736l0,-320C460.8,396.8 448,384 435.2,384S396.8,396.8 396.8,416l0,320c0,19.2 12.8,32 32,32S460.8,755.2 460.8,736z" />
+    <path
+        android:fillColor="@color/gray"
+        android:pathData="M627.2,736l0,-320C627.2,396.8 608,384 588.8,384S563.2,396.8 563.2,416l0,320C563.2,755.2 576,768 588.8,768S627.2,755.2 627.2,736z" />
+    <path
+        android:fillColor="@color/gray"
+        android:pathData="M832,256l-160,0L672,211.2C672,166.4 633.6,128 588.8,128L435.2,128C390.4,128 352,166.4 352,211.2L352,256 192,256C172.8,256 160,268.8 160,288S172.8,320 192,320l640,0c19.2,0 32,-12.8 32,-32S851.2,256 832,256zM416,211.2C416,198.4 422.4,192 435.2,192l153.6,0c12.8,0 19.2,6.4 19.2,19.2L608,256l-192,0L416,211.2z" />
 </vector>

diff --git a/app/src/main/java/com/casic/xz/meterage/utils/DataBaseManager.kt b/app/src/main/java/com/casic/xz/meterage/utils/DataBaseManager.kt
index 52fe032..d4a45ea 100644
--- a/app/src/main/java/com/casic/xz/meterage/utils/DataBaseManager.kt
+++ b/app/src/main/java/com/casic/xz/meterage/utils/DataBaseManager.kt
@@ -26,7 +26,18 @@
         bean.searchType = searchType
         bean.userId = userId.toString()
         bean.searchTime = System.currentTimeMillis().timestampToCompleteDate()
-        searchBeanDao.insert(bean)
+        if (!isKeywordsExist(keywords, searchType)) {
+            searchBeanDao.insert(bean)
+        }
+    }
+
+    private fun isKeywordsExist(keywords: String, searchType: String): Boolean {
+        val count = searchBeanDao.queryBuilder().where(
+            SearchHistoryBeanDao.Properties.UserId.eq(userId),
+            SearchHistoryBeanDao.Properties.Keywords.eq(keywords),
+            SearchHistoryBeanDao.Properties.SearchType.eq(searchType)
+        ).count()
+        return count.toInt() != 0
     }
 
     fun queryHistoryByType(searchType: String): MutableList<SearchHistoryBean> {
diff --git a/app/src/main/res/drawable/ic_delete.xml b/app/src/main/res/drawable/ic_delete.xml
index 1810342..16123df 100644
--- a/app/src/main/res/drawable/ic_delete.xml
+++ b/app/src/main/res/drawable/ic_delete.xml
@@ -1,9 +1,18 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="@dimen/pngSize"
-    android:height="@dimen/pngSize"
+    android:width="128dp"
+    android:height="128dp"
     android:viewportWidth="1024"
     android:viewportHeight="1024">
     <path
         android:fillColor="@color/gray"
-        android:pathData="M426.7,227.6v-28.4A28.4,28.4 0,0 1,455.1 170.7h113.8a28.4,28.4 0,0 1,28.4 28.4L597.3,227.6h170.7a28.4,28.4 0,1 1,0 56.9h-512a28.4,28.4 0,0 1,0 -56.9h170.7zM341.3,341.3h341.3a56.9,56.9 0,0 1,56.9 56.9v398.2a56.9,56.9 0,0 1,-56.9 56.9L341.3,853.3a56.9,56.9 0,0 1,-56.9 -56.9L284.4,398.2a56.9,56.9 0,0 1,56.9 -56.9zM398.2,455.1a28.4,28.4 0,0 0,-28.4 28.4v227.6a28.4,28.4 0,1 0,56.9 0v-227.6A28.4,28.4 0,0 0,398.2 455.1zM512,455.1a28.4,28.4 0,0 0,-28.4 28.4v227.6a28.4,28.4 0,1 0,56.9 0v-227.6A28.4,28.4 0,0 0,512 455.1zM625.8,455.1a28.4,28.4 0,0 0,-28.4 28.4v227.6a28.4,28.4 0,1 0,56.9 0v-227.6A28.4,28.4 0,0 0,625.8 455.1z" />
+        android:pathData="M768,384c-19.2,0 -32,12.8 -32,32l0,377.6c0,25.6 -19.2,38.4 -38.4,38.4L326.4,832c-25.6,0 -38.4,-19.2 -38.4,-38.4L288,416C288,396.8 275.2,384 256,384S224,396.8 224,416l0,377.6c0,57.6 44.8,102.4 102.4,102.4l364.8,0c57.6,0 102.4,-44.8 102.4,-102.4L793.6,416C800,396.8 787.2,384 768,384z" />
+    <path
+        android:fillColor="@color/gray"
+        android:pathData="M460.8,736l0,-320C460.8,396.8 448,384 435.2,384S396.8,396.8 396.8,416l0,320c0,19.2 12.8,32 32,32S460.8,755.2 460.8,736z" />
+    <path
+        android:fillColor="@color/gray"
+        android:pathData="M627.2,736l0,-320C627.2,396.8 608,384 588.8,384S563.2,396.8 563.2,416l0,320C563.2,755.2 576,768 588.8,768S627.2,755.2 627.2,736z" />
+    <path
+        android:fillColor="@color/gray"
+        android:pathData="M832,256l-160,0L672,211.2C672,166.4 633.6,128 588.8,128L435.2,128C390.4,128 352,166.4 352,211.2L352,256 192,256C172.8,256 160,268.8 160,288S172.8,320 192,320l640,0c19.2,0 32,-12.8 32,-32S851.2,256 832,256zM416,211.2C416,198.4 422.4,192 435.2,192l153.6,0c12.8,0 19.2,6.4 19.2,19.2L608,256l-192,0L416,211.2z" />
 </vector>
diff --git a/app/src/main/res/layout/activity_search_equipment.xml b/app/src/main/res/layout/activity_search_equipment.xml
index f637b70..73f53de 100644
--- a/app/src/main/res/layout/activity_search_equipment.xml
+++ b/app/src/main/res/layout/activity_search_equipment.xml
@@ -17,7 +17,8 @@
     <!-- 流式布局显示查询记录Tag -->
     <RelativeLayout
         android:layout_width="match_parent"
-        android:layout_height="wrap_content">
+        android:layout_height="wrap_content"
+        android:padding="@dimen/dp_5">
 
         <TextView
             android:layout_width="wrap_content"
@@ -25,13 +26,13 @@
             android:layout_centerVertical="true"
             android:layout_marginStart="@dimen/dp_10"
             android:text="搜索历史"
-            android:textColor="@color/gray"
+            android:textColor="@color/black"
             android:textSize="@dimen/sp_14" />
 
         <ImageView
             android:id="@+id/deleteHistoryView"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
+            android:layout_width="@dimen/pngSize"
+            android:layout_height="@dimen/pngSize"
             android:layout_alignParentEnd="true"
             android:padding="@dimen/dp_3"
             android:src="@drawable/ic_delete" />

diff --git a/app/src/main/java/com/casic/xz/meterage/utils/DataBaseManager.kt b/app/src/main/java/com/casic/xz/meterage/utils/DataBaseManager.kt
index 52fe032..d4a45ea 100644
--- a/app/src/main/java/com/casic/xz/meterage/utils/DataBaseManager.kt
+++ b/app/src/main/java/com/casic/xz/meterage/utils/DataBaseManager.kt
@@ -26,7 +26,18 @@
         bean.searchType = searchType
         bean.userId = userId.toString()
         bean.searchTime = System.currentTimeMillis().timestampToCompleteDate()
-        searchBeanDao.insert(bean)
+        if (!isKeywordsExist(keywords, searchType)) {
+            searchBeanDao.insert(bean)
+        }
+    }
+
+    private fun isKeywordsExist(keywords: String, searchType: String): Boolean {
+        val count = searchBeanDao.queryBuilder().where(
+            SearchHistoryBeanDao.Properties.UserId.eq(userId),
+            SearchHistoryBeanDao.Properties.Keywords.eq(keywords),
+            SearchHistoryBeanDao.Properties.SearchType.eq(searchType)
+        ).count()
+        return count.toInt() != 0
     }
 
     fun queryHistoryByType(searchType: String): MutableList<SearchHistoryBean> {
diff --git a/app/src/main/res/drawable/ic_delete.xml b/app/src/main/res/drawable/ic_delete.xml
index 1810342..16123df 100644
--- a/app/src/main/res/drawable/ic_delete.xml
+++ b/app/src/main/res/drawable/ic_delete.xml
@@ -1,9 +1,18 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="@dimen/pngSize"
-    android:height="@dimen/pngSize"
+    android:width="128dp"
+    android:height="128dp"
     android:viewportWidth="1024"
     android:viewportHeight="1024">
     <path
         android:fillColor="@color/gray"
-        android:pathData="M426.7,227.6v-28.4A28.4,28.4 0,0 1,455.1 170.7h113.8a28.4,28.4 0,0 1,28.4 28.4L597.3,227.6h170.7a28.4,28.4 0,1 1,0 56.9h-512a28.4,28.4 0,0 1,0 -56.9h170.7zM341.3,341.3h341.3a56.9,56.9 0,0 1,56.9 56.9v398.2a56.9,56.9 0,0 1,-56.9 56.9L341.3,853.3a56.9,56.9 0,0 1,-56.9 -56.9L284.4,398.2a56.9,56.9 0,0 1,56.9 -56.9zM398.2,455.1a28.4,28.4 0,0 0,-28.4 28.4v227.6a28.4,28.4 0,1 0,56.9 0v-227.6A28.4,28.4 0,0 0,398.2 455.1zM512,455.1a28.4,28.4 0,0 0,-28.4 28.4v227.6a28.4,28.4 0,1 0,56.9 0v-227.6A28.4,28.4 0,0 0,512 455.1zM625.8,455.1a28.4,28.4 0,0 0,-28.4 28.4v227.6a28.4,28.4 0,1 0,56.9 0v-227.6A28.4,28.4 0,0 0,625.8 455.1z" />
+        android:pathData="M768,384c-19.2,0 -32,12.8 -32,32l0,377.6c0,25.6 -19.2,38.4 -38.4,38.4L326.4,832c-25.6,0 -38.4,-19.2 -38.4,-38.4L288,416C288,396.8 275.2,384 256,384S224,396.8 224,416l0,377.6c0,57.6 44.8,102.4 102.4,102.4l364.8,0c57.6,0 102.4,-44.8 102.4,-102.4L793.6,416C800,396.8 787.2,384 768,384z" />
+    <path
+        android:fillColor="@color/gray"
+        android:pathData="M460.8,736l0,-320C460.8,396.8 448,384 435.2,384S396.8,396.8 396.8,416l0,320c0,19.2 12.8,32 32,32S460.8,755.2 460.8,736z" />
+    <path
+        android:fillColor="@color/gray"
+        android:pathData="M627.2,736l0,-320C627.2,396.8 608,384 588.8,384S563.2,396.8 563.2,416l0,320C563.2,755.2 576,768 588.8,768S627.2,755.2 627.2,736z" />
+    <path
+        android:fillColor="@color/gray"
+        android:pathData="M832,256l-160,0L672,211.2C672,166.4 633.6,128 588.8,128L435.2,128C390.4,128 352,166.4 352,211.2L352,256 192,256C172.8,256 160,268.8 160,288S172.8,320 192,320l640,0c19.2,0 32,-12.8 32,-32S851.2,256 832,256zM416,211.2C416,198.4 422.4,192 435.2,192l153.6,0c12.8,0 19.2,6.4 19.2,19.2L608,256l-192,0L416,211.2z" />
 </vector>
diff --git a/app/src/main/res/layout/activity_search_equipment.xml b/app/src/main/res/layout/activity_search_equipment.xml
index f637b70..73f53de 100644
--- a/app/src/main/res/layout/activity_search_equipment.xml
+++ b/app/src/main/res/layout/activity_search_equipment.xml
@@ -17,7 +17,8 @@
     <!-- 流式布局显示查询记录Tag -->
     <RelativeLayout
         android:layout_width="match_parent"
-        android:layout_height="wrap_content">
+        android:layout_height="wrap_content"
+        android:padding="@dimen/dp_5">
 
         <TextView
             android:layout_width="wrap_content"
@@ -25,13 +26,13 @@
             android:layout_centerVertical="true"
             android:layout_marginStart="@dimen/dp_10"
             android:text="搜索历史"
-            android:textColor="@color/gray"
+            android:textColor="@color/black"
             android:textSize="@dimen/sp_14" />
 
         <ImageView
             android:id="@+id/deleteHistoryView"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
+            android:layout_width="@dimen/pngSize"
+            android:layout_height="@dimen/pngSize"
             android:layout_alignParentEnd="true"
             android:padding="@dimen/dp_3"
             android:src="@drawable/ic_delete" />
diff --git a/app/src/main/res/layout/item_search_rv_l.xml b/app/src/main/res/layout/item_search_rv_l.xml
index 1dae83c..b2b1504 100644
--- a/app/src/main/res/layout/item_search_rv_l.xml
+++ b/app/src/main/res/layout/item_search_rv_l.xml
@@ -1,14 +1,20 @@
 <?xml version="1.0" encoding="utf-8"?>
-<com.qmuiteam.qmui.widget.roundwidget.QMUIRoundButton xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:id="@+id/searchTagView"
-    android:layout_width="wrap_content"
+    android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:paddingHorizontal="@dimen/dp_10"
-    android:paddingVertical="@dimen/dp_3"
-    android:text="型号A"
-    android:textColor="@color/themeColor"
-    android:textSize="@dimen/sp_14"
-    app:qmui_borderColor="@color/themeColor"
-    app:qmui_borderWidth="@dimen/dp_1"
-    app:qmui_radius="@dimen/dp_3" />
+    android:padding="@dimen/dp_5">
+
+    <com.qmuiteam.qmui.widget.roundwidget.QMUIRoundButton
+        android:id="@+id/searchTagView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:paddingHorizontal="@dimen/dp_10"
+        android:paddingVertical="@dimen/dp_5"
+        android:text="型号A"
+        android:textColor="@color/gray"
+        android:textSize="@dimen/sp_12"
+        app:qmui_backgroundColor="@color/mainBackground"
+        app:qmui_borderWidth="0dp"
+        app:qmui_radius="12.5dp" />
+</LinearLayout>
\ No newline at end of file