diff --git a/apps/web/src/pages/voices/components/tts-modal/constants.ts b/apps/web/src/pages/voices/components/tts-modal/constants.ts
new file mode 100644
index 000000000..e57ff482b
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+++ b/apps/web/src/pages/voices/components/tts-modal/constants.ts
@@ -0,0 +1,22 @@
+/** TTS 情绪选项（对齐后端 CosyVoice 支持：natural/excited/calm/friendly） */
+export const TTS_EMOTION_OPTIONS = [
+  { value: "natural", label: "自然" },
+  { value: "excited", label: "兴奋" },
+  { value: "calm", label: "沉稳" },
+  { value: "friendly", label: "亲切" },
+] as const
+
+export type TtsEmotion = (typeof TTS_EMOTION_OPTIONS)[number]["value"]
+
+/** TTS 语言选项 */
+export const TTS_LANGUAGE_OPTIONS = [
+  { value: "zh-CN", label: "中文" },
+  { value: "en", label: "英文" },
+  { value: "ja", label: "日文" },
+  { value: "ko", label: "韩文" },
+] as const
+
+export type TtsLanguage = (typeof TTS_LANGUAGE_OPTIONS)[number]["value"]
+
+export const DEFAULT_TTS_EMOTION: TtsEmotion = "natural"
+export const DEFAULT_TTS_LANGUAGE: TtsLanguage = "zh-CN"