diff --git a/src/dialog/Dialog.js b/src/dialog/Dialog.js
index 88b9be460..1cc9881b9 100644
--- a/src/dialog/Dialog.js
+++ b/src/dialog/Dialog.js
@@ -173,6 +173,7 @@ export default createComponent({
               loading={this.loading.cancel}
               text={this.cancelButtonText || t('cancel')}
               style={{ color: this.cancelButtonColor }}
+              nativeType="button"
               onClick={() => {
                 this.handleAction('cancel');
               }}
@@ -185,6 +186,7 @@ export default createComponent({
               loading={this.loading.confirm}
               text={this.confirmButtonText || t('confirm')}
               style={{ color: this.confirmButtonColor }}
+              nativeType="button"
               onClick={() => {
                 this.handleAction('confirm');
               }}
diff --git a/src/dialog/test/__snapshots__/demo.spec.js.snap b/src/dialog/test/__snapshots__/demo.spec.js.snap
index f28cc820b..c060dce67 100644
--- a/src/dialog/test/__snapshots__/demo.spec.js.snap
+++ b/src/dialog/test/__snapshots__/demo.spec.js.snap
@@ -40,9 +40,9 @@ exports[`renders demo correctly 1`] = `
     <div role="dialog" aria-labelledby="标题" tabindex="0" class="van-dialog" style="display: none;" name="van-dialog-bounce">
       <div class="van-dialog__header">标题</div>
       <div class="van-dialog__content"><img src="https://img01.yzcdn.cn/vant/apple-3.jpg"></div>
-      <div class="van-hairline--top van-dialog__footer"><button class="van-button van-button--default van-button--large van-dialog__cancel">
+      <div class="van-hairline--top van-dialog__footer"><button type="button" class="van-button van-button--default van-button--large van-dialog__cancel">
           <div class="van-button__content"><span class="van-button__text">取消</span></div>
-        </button><button class="van-button van-button--default van-button--large van-dialog__confirm van-hairline--left">
+        </button><button type="button" class="van-button van-button--default van-button--large van-dialog__confirm van-hairline--left">
           <div class="van-button__content"><span class="van-button__text">确认弹窗</span></div>
         </button></div>
     </div>
diff --git a/src/dialog/test/__snapshots__/index.spec.js.snap b/src/dialog/test/__snapshots__/index.spec.js.snap
index 8ff040413..d45966f19 100644
--- a/src/dialog/test/__snapshots__/index.spec.js.snap
+++ b/src/dialog/test/__snapshots__/index.spec.js.snap
@@ -4,9 +4,9 @@ exports[`allow-html prop 1`] = `<div class="van-dialog__message">&lt;span&gt;tex
 
 exports[`button color 1`] = `
 <div role="dialog" tabindex="0" class="van-dialog" name="van-dialog-bounce">
-  <div class="van-hairline--top van-dialog__footer"><button class="van-button van-button--default van-button--large van-dialog__cancel" style="color: white;">
+  <div class="van-hairline--top van-dialog__footer"><button type="button" class="van-button van-button--default van-button--large van-dialog__cancel" style="color: white;">
       <div class="van-button__content"><span class="van-button__text">取消</span></div>
-    </button><button class="van-button van-button--default van-button--large van-dialog__confirm van-hairline--left" style="color: red;">
+    </button><button type="button" class="van-button van-button--default van-button--large van-dialog__confirm van-hairline--left" style="color: red;">
       <div class="van-button__content"><span class="van-button__text">确认</span></div>
     </button></div>
 </div>
@@ -14,9 +14,9 @@ exports[`button color 1`] = `
 
 exports[`button text 1`] = `
 <div role="dialog" tabindex="0" class="van-dialog" name="van-dialog-bounce">
-  <div class="van-hairline--top van-dialog__footer"><button class="van-button van-button--default van-button--large van-dialog__cancel">
+  <div class="van-hairline--top van-dialog__footer"><button type="button" class="van-button van-button--default van-button--large van-dialog__cancel">
       <div class="van-button__content"><span class="van-button__text">Custom cancel</span></div>
-    </button><button class="van-button van-button--default van-button--large van-dialog__confirm van-hairline--left">
+    </button><button type="button" class="van-button van-button--default van-button--large van-dialog__confirm van-hairline--left">
       <div class="van-button__content"><span class="van-button__text">Custom confirm</span></div>
     </button></div>
 </div>
@@ -25,7 +25,7 @@ exports[`button text 1`] = `
 exports[`default slot 1`] = `
 <div role="dialog" tabindex="0" class="van-dialog" name="van-dialog-bounce">
   <div class="van-dialog__content">Custom Message</div>
-  <div class="van-hairline--top van-dialog__footer"><button class="van-button van-button--default van-button--large van-dialog__confirm">
+  <div class="van-hairline--top van-dialog__footer"><button type="button" class="van-button van-button--default van-button--large van-dialog__confirm">
       <div class="van-button__content"><span class="van-button__text">确认</span></div>
     </button></div>
 </div>
@@ -34,7 +34,7 @@ exports[`default slot 1`] = `
 exports[`title slot 1`] = `
 <div role="dialog" tabindex="0" class="van-dialog" name="van-dialog-bounce">
   <div class="van-dialog__header van-dialog__header--isolated">Custom Title</div>
-  <div class="van-hairline--top van-dialog__footer"><button class="van-button van-button--default van-button--large van-dialog__confirm">
+  <div class="van-hairline--top van-dialog__footer"><button type="button" class="van-button van-button--default van-button--large van-dialog__confirm">
       <div class="van-button__content"><span class="van-button__text">确认</span></div>
     </button></div>
 </div>