diff --git a/changelog.md b/changelog.md
index 74d3a0360..bbbb0f3c5 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,6 +1,10 @@
 # 更新日志
+2.0(2021-11)
+- 限制了复选下拉框一次粘贴添加值个数最大2000
+
 2.0(2021-10)
 - combo增加window.blur事件触发隐藏
+
 2.0(2021-09)
 - 支持自动watch
 - 支持h函数传递left、right，优化left_right_vertical_adapt布局的jsx写法
diff --git a/i18n/i18n.cn.js b/i18n/i18n.cn.js
index 77db2c53d..9a43ca507 100644
--- a/i18n/i18n.cn.js
+++ b/i18n/i18n.cn.js
@@ -197,5 +197,6 @@ BI.i18n = {
     "BI-Basic_Year_Month_Range_Error": "请选择{R1}年{R2}月-{R3}年{R4}月的日期",
     "BI-Basic_Year_Quarter_Range_Error": "请选择{R1}年{R2}季度-{R3}年{R4}季度的日期",
     "BI-Basic_Search_And_Patch_Paste": "搜索，支持批量粘贴、粘贴值通过换行识别",
-    "BI-Basic_Recommend_Color": "推荐色"
+    "BI-Basic_Recommend_Color": "推荐色",
+    "BI-Basic_Too_Much_Value_Get_Two_Thousand": "粘贴的值过多，只能识别出前2000个值"
 };
\ No newline at end of file
diff --git a/src/widget/multiselect/multiselect.insert.combo.js b/src/widget/multiselect/multiselect.insert.combo.js
index 35d005cd6..c77953401 100644
--- a/src/widget/multiselect/multiselect.insert.combo.js
+++ b/src/widget/multiselect/multiselect.insert.combo.js
@@ -81,7 +81,7 @@ BI.MultiSelectInsertCombo = BI.inherit(BI.Single, {
             var last = BI.last(keywords);
             keywords = BI.initial(keywords || []);
             if (keywords.length > 0) {
-                self._joinKeywords(keywords, function () {
+                self._joinKeywords(keywords.slice(0, 2000), function () {
                     if (BI.endWith(last, BI.BlankSplitChar)) {
                         self.combo.setValue(self.storeValue);
                         assertShowValue();
@@ -93,6 +93,7 @@ BI.MultiSelectInsertCombo = BI.inherit(BI.Single, {
                     }
                     self._dataChange = true;
                 });
+                keywords.length > 2000 && BI.Msg.alert(BI.i18nText("BI-Basic_Prompt"), BI.i18nText("BI-Basic_Too_Much_Value_Get_Two_Thousand"));
             }
             self.fireEvent(BI.MultiSelectInsertCombo.EVENT_SEARCHING);
         });
diff --git a/src/widget/multiselect/multiselect.insert.combo.nobar.js b/src/widget/multiselect/multiselect.insert.combo.nobar.js
index fe1293a5c..28065441e 100644
--- a/src/widget/multiselect/multiselect.insert.combo.nobar.js
+++ b/src/widget/multiselect/multiselect.insert.combo.nobar.js
@@ -76,7 +76,7 @@ BI.MultiSelectInsertNoBarCombo = BI.inherit(BI.Single, {
             var last = BI.last(keywords);
             keywords = BI.initial(keywords || []);
             if (keywords.length > 0) {
-                self._joinKeywords(keywords, function () {
+                self._joinKeywords(keywords.slice(0, 2000), function () {
                     if (BI.endWith(last, BI.BlankSplitChar)) {
                         self.combo.setValue(self.storeValue);
                         assertShowValue();
@@ -88,6 +88,7 @@ BI.MultiSelectInsertNoBarCombo = BI.inherit(BI.Single, {
                     }
                     self._dataChange = true;
                 });
+                keywords.length > 2000 && BI.Msg.alert(BI.i18nText("BI-Basic_Prompt"), BI.i18nText("BI-Basic_Too_Much_Value_Get_Two_Thousand"));
             }
         });
 
diff --git a/src/widget/multiselectlist/multiselectlist.insert.js b/src/widget/multiselectlist/multiselectlist.insert.js
index 2fe856a8e..b27d1271b 100644
--- a/src/widget/multiselectlist/multiselectlist.insert.js
+++ b/src/widget/multiselectlist/multiselectlist.insert.js
@@ -126,7 +126,7 @@ BI.MultiSelectInsertList = BI.inherit(BI.Single, {
                     var last = BI.last(keywords);
                     keywords = BI.initial(keywords || []);
                     if (keywords.length > 0) {
-                        self._joinKeywords(keywords, function () {
+                        self._joinKeywords(keywords.slice(0, 2000), function () {
                             if (BI.endWith(last, BI.BlankSplitChar)) {
                                 self.adapter.setValue(self.storeValue);
                                 assertShowValue();
@@ -138,6 +138,7 @@ BI.MultiSelectInsertList = BI.inherit(BI.Single, {
                             }
                             self.fireEvent(BI.MultiSelectInsertList.EVENT_CHANGE);
                         });
+                        keywords.length > 2000 && BI.Msg.alert(BI.i18nText("BI-Basic_Prompt"), BI.i18nText("BI-Basic_Too_Much_Value_Get_Two_Thousand"));
                     }
                 }
             }, {
diff --git a/src/widget/multiselectlist/multiselectlist.insert.nobar.js b/src/widget/multiselectlist/multiselectlist.insert.nobar.js
index e4b74eff3..6e5f1d65b 100644
--- a/src/widget/multiselectlist/multiselectlist.insert.nobar.js
+++ b/src/widget/multiselectlist/multiselectlist.insert.nobar.js
@@ -129,7 +129,7 @@ BI.MultiSelectInsertNoBarList = BI.inherit(BI.Single, {
                     var last = BI.last(keywords);
                     keywords = BI.initial(keywords || []);
                     if (keywords.length > 0) {
-                        self._joinKeywords(keywords, function () {
+                        self._joinKeywords(keywords.slice(0, 2000), function () {
                             if (BI.endWith(last, BI.BlankSplitChar)) {
                                 self.adapter.setValue(self.storeValue);
                                 assertShowValue();
@@ -141,6 +141,7 @@ BI.MultiSelectInsertNoBarList = BI.inherit(BI.Single, {
                             }
                             self.fireEvent(BI.MultiSelectInsertNoBarList.EVENT_CHANGE);
                         });
+                        keywords.length > 2000 && BI.Msg.alert(BI.i18nText("BI-Basic_Prompt"), BI.i18nText("BI-Basic_Too_Much_Value_Get_Two_Thousand"));
                     }
                 }
             }, {