diff --git a/packages/umi-test/src/index.js b/packages/umi-test/src/index.js
index dbb6823b9a41..d6b5ad72a86e 100644
--- a/packages/umi-test/src/index.js
+++ b/packages/umi-test/src/index.js
@@ -38,7 +38,7 @@ export default function(opts = {}) {
       '\\.tsx?$': require.resolve('./transformers/tsTransformer'),
     },
     testMatch: ['**/?(*.)(spec|test|e2e).(j|t)s?(x)'],
-    moduleFileExtensions: ['js', 'jsx', 'ts', 'tsx'],
+    moduleFileExtensions: ['js', 'jsx', 'ts', 'tsx', 'json'],
     setupTestFrameworkScriptFile: require.resolve('./jasmine'),
     moduleNameMapper: {
       '\\.(css|less|sass|scss)$': require.resolve('identity-obj-proxy'),
diff --git a/packages/umi-test/src/transformers/jsTransformer.js b/packages/umi-test/src/transformers/jsTransformer.js
index 7bba80fee00f..be2277f0186b 100644
--- a/packages/umi-test/src/transformers/jsTransformer.js
+++ b/packages/umi-test/src/transformers/jsTransformer.js
@@ -21,6 +21,7 @@ export default babelJest.createTransformer({
           enzyme: require.resolve('enzyme'),
         },
       },
+      'module-resolver-in-umi-test',
     ],
   ],
 });