diff --git a/src/views/chat/index.vue b/src/views/chat/index.vue
index 25eb729cca..9d1e1c691a 100644
--- a/src/views/chat/index.vue
+++ b/src/views/chat/index.vue
@@ -527,7 +527,7 @@ onUnmounted(() => {
                 v-model:value="prompt"
                 type="textarea"
                 :placeholder="placeholder"
-                :autosize="{ minRows: 1, maxRows: 2 }"
+                :autosize="{ minRows: 1, maxRows: isMobile ? 4 : 8 }"
                 @input="handleInput"
                 @focus="handleFocus"
                 @blur="handleBlur"