diff --git a/binding/binding_test.go b/binding/binding_test.go
index a789412c..f0b6f795 100644
--- a/binding/binding_test.go
+++ b/binding/binding_test.go
@@ -1271,30 +1271,3 @@ func requestWithBody(method, path, body string) (req *http.Request) {
 	req, _ = http.NewRequest(method, path, bytes.NewBufferString(body))
 	return
 }
-
-type bindTestData struct {
-	need interface{}
-	got  interface{}
-	in   map[string][]string
-}
-
-func Test_Binding_BaseType(t *testing.T) {
-	type needFixDurationEmpty struct {
-		Duration time.Duration `form:"duration"`
-	}
-
-	type needFixUnixNanoEmpty struct {
-		CreateTime time.Time `form:"createTime" time_format:"unixNano"`
-	}
-
-	tests := []bindTestData{
-		{need: &needFixDurationEmpty{}, got: &needFixDurationEmpty{}, in: http.Header{"duration": []string{}}},
-		{need: &needFixUnixNanoEmpty{}, got: &needFixUnixNanoEmpty{}, in: http.Header{"createTime": []string{}}},
-	}
-
-	for _, v := range tests {
-		err := mapForm(v.got, v.in)
-		assert.NoError(t, err)
-		assert.Equal(t, v.need, v.got)
-	}
-}
diff --git a/binding/form_mapping.go b/binding/form_mapping.go
index 972a56e8..dcd305e7 100644
--- a/binding/form_mapping.go
+++ b/binding/form_mapping.go
@@ -170,6 +170,10 @@ func setByForm(value reflect.Value, field reflect.StructField, form map[string][
 }
 
 func setWithProperType(val string, value reflect.Value, field reflect.StructField) error {
+	if value.Kind() != reflect.String {
+		val = strings.TrimSpace(val)
+	}
+
 	switch value.Kind() {
 	case reflect.Int:
 		return setIntField(val, 0, value)
diff --git a/binding/form_mapping_test.go b/binding/form_mapping_test.go
index 2a560371..b3efe7b3 100644
--- a/binding/form_mapping_test.go
+++ b/binding/form_mapping_test.go
@@ -190,7 +190,34 @@ func TestMappingTime(t *testing.T) {
 	assert.Error(t, err)
 }
 
-func TestMapiingTimeDuration(t *testing.T) {
+type bindTestData struct {
+	need interface{}
+	got  interface{}
+	in   map[string][]string
+}
+
+func TestMappingTimeUnixNano(t *testing.T) {
+	type needFixUnixNanoEmpty struct {
+		CreateTime time.Time `form:"createTime" time_format:"unixNano"`
+	}
+
+	// ok
+	tests := []bindTestData{
+		{need: &needFixUnixNanoEmpty{}, got: &needFixUnixNanoEmpty{}, in: formSource{"createTime": []string{"   "}}},
+		{need: &needFixUnixNanoEmpty{}, got: &needFixUnixNanoEmpty{}, in: formSource{"createTime": []string{}}},
+	}
+
+	for _, v := range tests {
+		err := mapForm(v.got, v.in)
+		assert.NoError(t, err)
+		assert.Equal(t, v.need, v.got)
+	}
+}
+
+func TestMappingTimeDuration(t *testing.T) {
+	type needFixDurationEmpty struct {
+		Duration time.Duration `form:"duration"`
+	}
 	var s struct {
 		D time.Duration
 	}
@@ -200,6 +227,17 @@ func TestMapiingTimeDuration(t *testing.T) {
 	assert.NoError(t, err)
 	assert.Equal(t, 5*time.Second, s.D)
 
+	// ok
+	tests := []bindTestData{
+		{need: &needFixDurationEmpty{}, got: &needFixDurationEmpty{}, in: formSource{"duration": []string{"   "}}},
+		{need: &needFixDurationEmpty{}, got: &needFixDurationEmpty{}, in: formSource{"duration": []string{}}},
+	}
+
+	for _, v := range tests {
+		err := mapForm(v.got, v.in)
+		assert.NoError(t, err)
+		assert.Equal(t, v.need, v.got)
+	}
 	// error
 	err = mappingByPtr(&s, formSource{"D": {"wrong"}}, "form")
 	assert.Error(t, err)