diff --git a/packages/mixins/bem.js b/packages/utils/bem.js
similarity index 63%
rename from packages/mixins/bem.js
rename to packages/utils/bem.js
index 20cce2b8d..12451dc6f 100644
--- a/packages/mixins/bem.js
+++ b/packages/utils/bem.js
@@ -22,24 +22,19 @@ const prefix = (name, mods) => {
   }
 
   const ret = {};
-  mods && Object.keys(mods).forEach(key => {
-    ret[name + MODS + key] = mods[key];
-  });
+  mods &&
+    Object.keys(mods).forEach(key => {
+      ret[name + MODS + key] = mods[key];
+    });
   return ret;
 };
 
-export default {
-  methods: {
-    b(el, mods) {
-      const { name } = this.$options;
-
-      if (el && typeof el !== 'string') {
-        mods = el;
-        el = '';
-      }
-      el = join(name, el, ELEMENT);
-
-      return mods ? [el, prefix(el, mods)] : el;
-    }
+export default name => (el, mods) => {
+  if (el && typeof el !== 'string') {
+    mods = el;
+    el = '';
   }
+  el = join(name, el, ELEMENT);
+
+  return mods ? [el, prefix(el, mods)] : el;
 };
diff --git a/packages/utils/create-basic.js b/packages/utils/create-basic.js
index f85314c51..b2acd1655 100644
--- a/packages/utils/create-basic.js
+++ b/packages/utils/create-basic.js
@@ -2,7 +2,7 @@
  * Create a basic component with common options
  */
 import '../locale';
-import bem from '../mixins/bem';
+import createBem from './bem';
 import i18n from '../mixins/i18n';
 import { isDef, camelize } from '.';
 
@@ -36,9 +36,10 @@ export default function (sfc) {
   sfc.name = 'van-' + sfc.name;
   sfc.install = sfc.install || install;
   sfc.mixins = sfc.mixins || [];
-  sfc.mixins.push(i18n, bem);
+  sfc.mixins.push(i18n);
   sfc.methods = sfc.methods || {};
   sfc.methods.isDef = isDef;
+  sfc.methods.b = createBem(sfc.name);
   sfc.props && defaultProps(sfc.props);
 
   return sfc;