diff --git a/packages/backend/server/src/plugins/copilot/prompt/prompts.ts b/packages/backend/server/src/plugins/copilot/prompt/prompts.ts
index e46656004..db9f98c69 100644
--- a/packages/backend/server/src/plugins/copilot/prompt/prompts.ts
+++ b/packages/backend/server/src/plugins/copilot/prompt/prompts.ts
@@ -689,6 +689,7 @@ You are a highly accomplished professional translator, demonstrating profound pr
         params: {
           language: [
             'English',
+            'Brazilian Portuguese',
             'Spanish',
             'German',
             'French',
@@ -708,6 +709,7 @@ You are a highly accomplished professional translator, demonstrating profound pr
         params: {
           language: [
             'English',
+            'Brazilian Portuguese',
             'Spanish',
             'German',
             'French',
diff --git a/packages/frontend/core/src/blocksuite/ai/actions/types.ts b/packages/frontend/core/src/blocksuite/ai/actions/types.ts
index 328783461..b6e8cf1e2 100644
--- a/packages/frontend/core/src/blocksuite/ai/actions/types.ts
+++ b/packages/frontend/core/src/blocksuite/ai/actions/types.ts
@@ -25,6 +25,7 @@ import type { PromptKey } from '../provider/prompt';
 
 export const translateLangs = [
   'English',
+  'Brazilian Portuguese',
   'Spanish',
   'German',
   'French',