diff --git a/main/manager-web/src/components/KnowledgeBaseDialog.vue b/main/manager-web/src/components/KnowledgeBaseDialog.vue
index 99d01341..a9ce84b5 100644
--- a/main/manager-web/src/components/KnowledgeBaseDialog.vue
+++ b/main/manager-web/src/components/KnowledgeBaseDialog.vue
@@ -72,6 +72,11 @@ export default {
           }
         ],
         description: [
+          {
+            required: true,
+            message: this.$t("knowledgeBaseDialog.descriptionRequired"),
+            trigger: "blur"
+          },
           {
             max: 200,
             message: this.$t("knowledgeBaseDialog.descriptionLength"),
diff --git a/main/manager-web/src/i18n/en.js b/main/manager-web/src/i18n/en.js
index 4cec8051..77a6d9e0 100644
--- a/main/manager-web/src/i18n/en.js
+++ b/main/manager-web/src/i18n/en.js
@@ -1259,4 +1259,5 @@ export default {
   'knowledgeFileUpload.comprehensiveSimilarity': 'Comprehensive Similarity',
   'knowledgeFileUpload.content': 'Content:',
   'knowledgeFileUpload.testQuestionRequired': 'Please enter test question',
+  'knowledgeBaseDialog.descriptionRequired': 'Please enter knowledge base description',
 }
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