diff --git a/packages/vant/src/field/README.md b/packages/vant/src/field/README.md
index 829461c5c..ed5d2ee5e 100644
--- a/packages/vant/src/field/README.md
+++ b/packages/vant/src/field/README.md
@@ -404,8 +404,8 @@ The component provides the following CSS variables, which can be used to customi
 | --van-field-input-error-text-color | _var(--van-danger-color)_ | - |
 | --van-field-input-disabled-text-color | _var(--van-text-color-3)_ | - |
 | --van-field-placeholder-text-color | _var(--van-text-color-3)_ | - |
-| --van-field-icon-size | _16px_ | - |
-| --van-field-clear-icon-size | _16px_ | - |
+| --van-field-icon-size | _18px_ | - |
+| --van-field-clear-icon-size | _18px_ | - |
 | --van-field-clear-icon-color | _var(--van-gray-5)_ | - |
 | --van-field-right-icon-color | _var(--van-gray-6)_ | - |
 | --van-field-error-message-color | _var(--van-danger-color)_ | - |
diff --git a/packages/vant/src/field/README.zh-CN.md b/packages/vant/src/field/README.zh-CN.md
index aa1c9a49c..c4943c08e 100644
--- a/packages/vant/src/field/README.zh-CN.md
+++ b/packages/vant/src/field/README.zh-CN.md
@@ -423,8 +423,8 @@ fieldRef.value?.focus();
 | --van-field-input-error-text-color    | _var(--van-danger-color)_ | -    |
 | --van-field-input-disabled-text-color | _var(--van-text-color-3)_ | -    |
 | --van-field-placeholder-text-color    | _var(--van-text-color-3)_ | -    |
-| --van-field-icon-size                 | _16px_                    | -    |
-| --van-field-clear-icon-size           | _16px_                    | -    |
+| --van-field-icon-size                 | _18px_                    | -    |
+| --van-field-clear-icon-size           | _18px_                    | -    |
 | --van-field-clear-icon-color          | _var(--van-gray-5)_       | -    |
 | --van-field-right-icon-color          | _var(--van-gray-6)_       | -    |
 | --van-field-error-message-color       | _var(--van-danger-color)_ | -    |
diff --git a/packages/vant/src/field/index.less b/packages/vant/src/field/index.less
index 7c275e968..8d6aeeb39 100644
--- a/packages/vant/src/field/index.less
+++ b/packages/vant/src/field/index.less
@@ -6,8 +6,8 @@
   --van-field-input-error-text-color: var(--van-danger-color);
   --van-field-input-disabled-text-color: var(--van-text-color-3);
   --van-field-placeholder-text-color: var(--van-text-color-3);
-  --van-field-icon-size: 16px;
-  --van-field-clear-icon-size: 16px;
+  --van-field-icon-size: 18px;
+  --van-field-clear-icon-size: 18px;
   --van-field-clear-icon-color: var(--van-gray-5);
   --van-field-right-icon-color: var(--van-gray-6);
   --van-field-error-message-color: var(--van-danger-color);