diff --git a/src/main/java/com/aliyun/tea/TeaModel.java b/src/main/java/com/aliyun/tea/TeaModel.java
index 0130870..4eefd3b 100644
--- a/src/main/java/com/aliyun/tea/TeaModel.java
+++ b/src/main/java/com/aliyun/tea/TeaModel.java
@@ -277,7 +277,7 @@ public void validate() {
                     minLength = validation.minLength();
                     maximum = validation.maximum();
                     minimum = validation.minimum();
-                    if (!"".equals(pattern) || maxLength > 0 || minLength > 0 || maximum != Double.MAX_VALUE || minimum != Double.MIN_VALUE) {
+                    if (!"".equals(pattern) || maxLength > 0 || minLength > 0 || maximum != Double.MAX_VALUE || minimum != -Double.MAX_VALUE) {
                         determineType(fields[i].getType(), object, pattern, maxLength, minLength, maximum, minimum, fields[i].getName());
                     }
                 }
diff --git a/src/main/java/com/aliyun/tea/Validation.java b/src/main/java/com/aliyun/tea/Validation.java
index a80afc1..86c79aa 100644
--- a/src/main/java/com/aliyun/tea/Validation.java
+++ b/src/main/java/com/aliyun/tea/Validation.java
@@ -14,7 +14,7 @@
 
     double maximum() default Double.MAX_VALUE;
 
-    double minimum() default Double.MIN_VALUE;
+    double minimum() default -Double.MAX_VALUE;
 
     boolean required() default false;
 }
diff --git a/src/test/java/com/aliyun/tea/TeaModelTest.java b/src/test/java/com/aliyun/tea/TeaModelTest.java
index c87c454..81efe40 100644
--- a/src/test/java/com/aliyun/tea/TeaModelTest.java
+++ b/src/test/java/com/aliyun/tea/TeaModelTest.java
@@ -453,6 +453,10 @@ public static class ValidateParamModel extends TeaModel {
         public Map<String, String> hasStringPattern = new HashMap<>();
         @Validation(required = true)
         public String requiredTrue = "test";
+        @Validation(maximum = 10)
+        public Long minNum;
+        @Validation(minimum = -10)
+        public Long maxNum;
     }
 
     @Test
@@ -558,6 +562,37 @@ public void validateTest() throws NoSuchMethodException {
         } catch (Exception e) {
             Assert.assertEquals("com.aliyun.tea.TeaModelTest$Hello.message regular match failed", e.getMessage());
         }
+
+        try {
+            validateParamModel.requiredTrue = "test";
+            Hello[] hellos = new Hello[]{new Hello()};
+            hellos[0].message = "test";
+            validateParamModel.hasPattern.put("test", hellos);
+            validateParamModel.hasPattern.put("test", hellos);
+            validateParamModel.maxNum = Long.MAX_VALUE;
+            validateParamModel.minNum = Long.MIN_VALUE;
+            validateParamModel.validate();
+        } catch (Exception e) {
+            Assert.fail();
+        }
+
+        try {
+            validateParamModel.requiredTrue = "test";
+            validateParamModel.maxNum = -11L;
+            validateParamModel.validate();
+            Assert.fail();
+        } catch (Exception e) {
+            Assert.assertEquals("com.aliyun.tea.TeaModelTest$ValidateParamModel.maxNum less than minimum", e.getMessage());
+        }
+
+        try {
+            validateParamModel.requiredTrue = "test";
+            validateParamModel.minNum = 11L;
+            validateParamModel.validate();
+            Assert.fail();
+        } catch (Exception e) {
+            Assert.assertEquals("com.aliyun.tea.TeaModelTest$ValidateParamModel.minNum exceeds the maximum", e.getMessage());
+        }
     }
 
     @Test
@@ -566,7 +601,7 @@ public void buildMapTest() {
         Assert.assertNull(TeaModel.buildMap(teaModel));
 
         teaModel = new ValidateParamModel();
-        Assert.assertEquals(6, TeaModel.buildMap(teaModel).size());
+        Assert.assertEquals(8, TeaModel.buildMap(teaModel).size());
     }
 
     @Test