diff --git a/packages/common/style/var.less b/packages/common/style/var.less
index cb7d778b..c6fc507e 100644
--- a/packages/common/style/var.less
+++ b/packages/common/style/var.less
@@ -269,6 +269,21 @@
 @panel-header-value-color: @red;
 @panel-footer-padding: @padding-xs @padding-md;
 
+// Picker
+@picker-background-color: @white;
+@picker-toolbar-height: 44px;
+@picker-title-font-size: @font-size-lg;
+@picker-action-padding: 0 @padding-md;
+@picker-action-font-size: @font-size-md;
+@picker-action-text-color: @blue;
+@picker-action-active-color: @active-color;
+@picker-option-font-size: @font-size-lg;
+@picker-option-text-color: @black;
+@picker-loading-icon-color: @blue;
+@picker-loading-mask-color: rgba(255, 255, 255, .9);
+@picker-option-disabled-opacity: .3;
+@picker-option-selected-text-color: @text-color;
+
 // Popup
 @popup-background-color: @white;
 @popup-round-border-radius: 20px;
diff --git a/packages/picker-column/index.less b/packages/picker-column/index.less
index 9cd07479..797b098f 100644
--- a/packages/picker-column/index.less
+++ b/packages/picker-column/index.less
@@ -3,20 +3,20 @@
 
 .van-picker-column {
   overflow: hidden;
-  font-size: 16px;
   text-align: center;
-  .theme(color, '@gray-dark');
+  .theme(color, '@picker-option-text-color');
+  .theme(font-size, '@picker-option-font-size');
 
   &__item {
     padding: 0 5px;
 
     &--selected {
-      font-weight: 500;
-      .theme(color, '@text-color');
+      .theme(font-weight, '@font-weight-bold');
+      .theme(color, '@picker-option-selected-text-color');
     }
 
     &--disabled {
-      opacity: 0.3;
+      .theme(opacity, '@picker-option-disabled-opacity');
     }
   }
 }
diff --git a/packages/picker/index.less b/packages/picker/index.less
index 02d26fd1..f28b5035 100644
--- a/packages/picker/index.less
+++ b/packages/picker/index.less
@@ -6,31 +6,31 @@
   overflow: hidden;
   -webkit-text-size-adjust: 100%; /* avoid iOS text size adjust */
   user-select: none;
-  .theme(background-color, '@white');
+  .theme(background-color, '@picker-background-color');
 
   &__toolbar {
     display: flex;
     justify-content: space-between;
-    height: 44px;
-    line-height: 44px;
+    .theme(height, '@picker-toolbar-height');
+    .theme(line-height, '@picker-toolbar-height');
   }
 
   &__cancel,
   &__confirm {
-    padding: 0 15px;
-    font-size: 14px;
-    .theme(color, '@blue');
+    .theme(padding, '@picker-action-padding');
+    .theme(font-size, '@picker-action-font-size');
+    .theme(color, '@picker-action-text-color');
 
     &--hover {
-      .theme(background-color, '@active-color');
+      .theme(background-color, '@picker-action-active-color');
     }
   }
 
   &__title {
     max-width: 50%;
-    font-weight: 500;
-    font-size: 16px;
     text-align: center;
+    .theme(font-weight, '@font-weight-bold');
+    .theme(font-size, '@picker-option-font-size');
   }
 
   &__columns {
@@ -53,7 +53,7 @@
     display: flex;
     align-items: center;
     justify-content: center;
-    background-color: rgba(255, 255, 255, 0.9);
+    .theme(background-color, '@picker-loading-mask-color');
   }
 
   &__loading .van-loading,