diff --git a/changelog.md b/changelog.md
index 9c11c0888..5da0b0a52 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,6 @@
 # 更新日志
 2.0(2020-04)
+- searcher提供可配是否支持搜索空格的allSearchBlank
 - 修复了复选下拉全选状态下使用空格添加值trigger显示更新不对的问题
 - 复选下拉树展开节点提供分页加载和滚动加载两种方式
 - 修复了复选下拉列表初始化的时候发送执行两次itemsCreator的问题
diff --git a/src/base/combination/searcher.js b/src/base/combination/searcher.js
index 7d99209b4..a3153db8e 100644
--- a/src/base/combination/searcher.js
+++ b/src/base/combination/searcher.js
@@ -21,6 +21,7 @@ BI.Searcher = BI.inherit(BI.Widget, {
             isAutoSearch: true, // 是否自动搜索
             isAutoSync: true, // 是否自动同步数据, 即是否保持搜索面板和adapter面板状态值的统一
             chooseType: BI.ButtonGroup.CHOOSE_TYPE_SINGLE,
+            allowSearchBlank: false,
 
             // isAutoSearch为false时启用
             onSearch: function (op, callback) {
@@ -164,7 +165,7 @@ BI.Searcher = BI.inherit(BI.Widget, {
     },
 
     _search: function () {
-        var self = this, o = this.options, keyword = this._getLastSearchKeyword();
+        var self = this, o = this.options, keyword = o.allowSearchBlank ? this.editor.getValue() : this._getLastSearchKeyword();
         if (keyword === "" || this._stop) {
             return;
         }
diff --git a/src/css/widget/singleselect/search/multiselect.css b/src/css/widget/singleselect/search/multiselect.css
new file mode 100644
index 000000000..3d881ba36
--- /dev/null
+++ b/src/css/widget/singleselect/search/multiselect.css
@@ -0,0 +1,3 @@
+.bi-multi-select-search-pane .multi-select-toolbar {
+  color: #faaa39;
+}
diff --git a/src/css/widget/singleselect/search/singleselect.css b/src/css/widget/singleselect/search/singleselect.css
new file mode 100644
index 000000000..d0f4778a4
--- /dev/null
+++ b/src/css/widget/singleselect/search/singleselect.css
@@ -0,0 +1,3 @@
+.bi-single-select-search-pane .single-select-toolbar {
+  color: #faaa39;
+}
diff --git a/src/less/widget/singleselect/search/singleselect.search.pane.less b/src/less/widget/singleselect/search/singleselect.search.pane.less
new file mode 100644
index 000000000..6674b663a
--- /dev/null
+++ b/src/less/widget/singleselect/search/singleselect.search.pane.less
@@ -0,0 +1,8 @@
+@import "../../../index";
+
+
+.bi-single-select-search-pane{
+  & .single-select-toolbar{
+    color: @color-bi-text-redmark;
+  }
+}
\ No newline at end of file
diff --git a/src/widget/singleselect/search/singleselect.search.pane.insert.js b/src/widget/singleselect/search/singleselect.search.pane.insert.js
index 6583a4c98..69d037dc3 100644
--- a/src/widget/singleselect/search/singleselect.search.pane.insert.js
+++ b/src/widget/singleselect/search/singleselect.search.pane.insert.js
@@ -31,7 +31,7 @@ BI.SingleSelectSearchInsertPane = BI.inherit(BI.Widget, {
             type: "bi.label",
             invisible: true,
             text: BI.i18nText("BI-Click_Blank_To_Select"),
-            cls: "multi-select-toolbar",
+            cls: "single-select-toolbar",
             height: this.constants.height
         });
 
diff --git a/src/widget/singleselect/search/singleselect.search.pane.js b/src/widget/singleselect/search/singleselect.search.pane.js
index 93cdb9140..3c98ab03e 100644
--- a/src/widget/singleselect/search/singleselect.search.pane.js
+++ b/src/widget/singleselect/search/singleselect.search.pane.js
@@ -31,7 +31,7 @@ BI.SingleSelectSearchPane = BI.inherit(BI.Widget, {
             type: "bi.label",
             invisible: true,
             text: BI.i18nText("BI-Click_Blank_To_Select"),
-            cls: "multi-select-toolbar",
+            cls: "single-select-toolbar",
             height: this.constants.height
         });