diff --git a/src/widget/multiselect/multiselect.insert.combo.js b/src/widget/multiselect/multiselect.insert.combo.js
index c77953401..f0435f6f7 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.slice(0, 2000), function () {
+                self._joinKeywords(keywords.slice(0, last === BI.BlankSplitChar ? 1999 : 2000), function () {
                     if (BI.endWith(last, BI.BlankSplitChar)) {
                         self.combo.setValue(self.storeValue);
                         assertShowValue();
diff --git a/src/widget/multiselect/multiselect.insert.combo.nobar.js b/src/widget/multiselect/multiselect.insert.combo.nobar.js
index 28065441e..18bfc8a82 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.slice(0, 2000), function () {
+                self._joinKeywords(keywords.slice(0, last === BI.BlankSplitChar ? 1999 : 2000), function () {
                     if (BI.endWith(last, BI.BlankSplitChar)) {
                         self.combo.setValue(self.storeValue);
                         assertShowValue();
diff --git a/src/widget/multiselectlist/multiselectlist.insert.js b/src/widget/multiselectlist/multiselectlist.insert.js
index b27d1271b..e4a6a004b 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.slice(0, 2000), function () {
+                        self._joinKeywords(keywords.slice(0, last === BI.BlankSplitChar ? 1999 : 2000), function () {
                             if (BI.endWith(last, BI.BlankSplitChar)) {
                                 self.adapter.setValue(self.storeValue);
                                 assertShowValue();
diff --git a/src/widget/multiselectlist/multiselectlist.insert.nobar.js b/src/widget/multiselectlist/multiselectlist.insert.nobar.js
index 6e5f1d65b..f4f1adff4 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.slice(0, 2000), function () {
+                        self._joinKeywords(keywords.slice(0, last === BI.BlankSplitChar ? 1999 : 2000), function () {
                             if (BI.endWith(last, BI.BlankSplitChar)) {
                                 self.adapter.setValue(self.storeValue);
                                 assertShowValue();