diff --git a/install.sh b/install.sh
index d2863dbf..e062be9c 100755
--- a/install.sh
+++ b/install.sh
@@ -196,6 +196,12 @@ pick_env() {
     1) SELECTED_ENV="main" ;;
     2) SELECTED_ENV="release" ;;
   esac
+  # 手动选择与配置不一致时更新 .ctms-env
+  if [[ -n "$env" && "$SELECTED_ENV" != "$env" ]]; then
+    local file="$ROOT_DIR/.ctms-env"
+    sed -i.bak "s/^env *=.*/env = $SELECTED_ENV/" "$file" && rm -f "${file}.bak"
+    ctms_info "已将 .ctms-env 中的环境更新为: $SELECTED_ENV"
+  fi
 }
 
 collect_install_options() {