diff --git a/src/main/java/com/alibaba/fastjson/JSONValidator.java b/src/main/java/com/alibaba/fastjson/JSONValidator.java
index ae33af79d..82dd84cea 100644
--- a/src/main/java/com/alibaba/fastjson/JSONValidator.java
+++ b/src/main/java/com/alibaba/fastjson/JSONValidator.java
@@ -16,7 +16,7 @@ public abstract class JSONValidator implements Cloneable, Closeable {
     protected Type type;
 
     protected int count = 0;
-    protected boolean supportMultiValue = true;
+    protected boolean supportMultiValue = false;
 
     public static JSONValidator fromUtf8(byte[] jsonBytes) {
         return new UTF8Validator(jsonBytes);
@@ -38,8 +38,9 @@ public abstract class JSONValidator implements Cloneable, Closeable {
         return supportMultiValue;
     }
 
-    public void setSupportMultiValue(boolean supportMultiValue) {
+    public JSONValidator setSupportMultiValue(boolean supportMultiValue) {
         this.supportMultiValue = supportMultiValue;
+        return this;
     }
 
     public Type getType() {
diff --git a/src/test/java/com/alibaba/json/bvt/issue_3400/Issue3460.java b/src/test/java/com/alibaba/json/bvt/issue_3400/Issue3460.java
new file mode 100644
index 000000000..513fad506
--- /dev/null
+++ b/src/test/java/com/alibaba/json/bvt/issue_3400/Issue3460.java
@@ -0,0 +1,30 @@
+package com.alibaba.json.bvt.issue_3400;
+
+import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson.JSONValidator;
+import com.alibaba.json.bvt.issue_3200.Issue3293;
+import junit.framework.TestCase;
+import org.junit.Assert;
+
+/**
+ * Description:  <br>
+ *
+ * @author byw
+ * @create 2020/9/20
+ */
+public class Issue3460 extends TestCase {
+
+    public void test_for_issue() throws Exception {
+        String body = "11{\"time\":" + System.currentTimeMillis() + "}";
+
+        assertFalse(
+                JSONValidator.from(body)
+                        .validate());
+
+        assertTrue(
+                JSONValidator.from(body)
+                        .setSupportMultiValue(true)
+                        .validate());
+    }
+
+}
\ No newline at end of file