diff --git a/packages/uni-cli-shared/lib/package.js b/packages/uni-cli-shared/lib/package.js
index b050a2ea32a4f2c1e939f6d07f9921af2b61988a..a98886e4f3eb266f6ef87556e5222a66fd4ee78d 100644
--- a/packages/uni-cli-shared/lib/package.js
+++ b/packages/uni-cli-shared/lib/package.js
@@ -35,7 +35,9 @@ module.exports = {
         if (scriptName !== name) {
           const define = uniAppOptions.scripts[scriptName].define
           Object.keys(define).forEach(name => {
-            define[name] = false
+            if (typeof scriptOptions.define[name] === "undefined") {
+              define[name] = false
+            }
           })
           Object.assign(scriptOptions.define, define)
         }
@@ -50,4 +52,4 @@ module.exports = {
 
     return scriptOptions
   }
-}
+}