diff --git a/pkg/apiserver/rest/usecase/addon.go b/pkg/apiserver/rest/usecase/addon.go
index f536c2682..ac14a705d 100644
--- a/pkg/apiserver/rest/usecase/addon.go
+++ b/pkg/apiserver/rest/usecase/addon.go
@@ -18,6 +18,7 @@ package usecase
 
 import (
 	"context"
+	"encoding/json"
 	"errors"
 	"fmt"
 	"sort"
@@ -25,6 +26,8 @@ import (
 	"sync"
 	"time"
 
+	k8stypes "k8s.io/apimachinery/pkg/types"
+
 	v1 "k8s.io/api/core/v1"
 	errors2 "k8s.io/apimachinery/pkg/api/errors"
 	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
@@ -39,6 +42,7 @@ import (
 	"github.com/oam-dev/kubevela/pkg/apiserver/clients"
 	"github.com/oam-dev/kubevela/pkg/apiserver/log"
 	apis "github.com/oam-dev/kubevela/pkg/apiserver/rest/apis/v1"
+	"github.com/oam-dev/kubevela/pkg/apiserver/rest/utils"
 	"github.com/oam-dev/kubevela/pkg/apiserver/rest/utils/bcode"
 	"github.com/oam-dev/kubevela/pkg/oam"
 	"github.com/oam-dev/kubevela/pkg/utils/apply"
@@ -155,7 +159,9 @@ func (u *defaultAddonHandler) GetAddon(ctx context.Context, name string, registr
 	if addon == nil {
 		return nil, bcode.ErrAddonNotExist
 	}
-	addon.UISchema = renderDefaultUISchema(addon.APISchema)
+
+	addon.UISchema = renderAddonCustomUISchema(ctx, u.kubeClient, name, renderDefaultUISchema(addon.APISchema))
+
 	a, err := AddonImpl2AddonRes(addon)
 	if err != nil {
 		return nil, err
@@ -455,6 +461,29 @@ func convertAppStateToAddonPhase(state common2.ApplicationPhase) apis.AddonPhase
 	}
 }
 
+func renderAddonCustomUISchema(ctx context.Context, cli client.Client, addonName string, defaultSchema []*utils.UIParameter) []*utils.UIParameter {
+	var cm v1.ConfigMap
+	if err := cli.Get(ctx, k8stypes.NamespacedName{
+		Namespace: types.DefaultKubeVelaNS,
+		Name:      fmt.Sprintf("addon-uischema-%s", addonName),
+	}, &cm); err != nil {
+		if !errors2.IsNotFound(err) {
+			log.Logger.Errorf("find uischema configmap from cluster failure %s", err.Error())
+		}
+		return defaultSchema
+	}
+	data, ok := cm.Data[types.UISchema]
+	if !ok {
+		return defaultSchema
+	}
+	schema := []*utils.UIParameter{}
+	if err := json.Unmarshal([]byte(data), &schema); err != nil {
+		log.Logger.Errorf("unmarshal ui schema failure %s", err.Error())
+		return defaultSchema
+	}
+	return patchSchema(defaultSchema, schema)
+}
+
 // ConvertAddonRegistryModel2AddonRegistryMeta will convert from model to AddonRegistry
 func ConvertAddonRegistryModel2AddonRegistryMeta(r pkgaddon.Registry) apis.AddonRegistry {
 	return apis.AddonRegistry{
diff --git a/pkg/apiserver/rest/usecase/addon_test.go b/pkg/apiserver/rest/usecase/addon_test.go
new file mode 100644
index 000000000..39acc8d44
--- /dev/null
+++ b/pkg/apiserver/rest/usecase/addon_test.go
@@ -0,0 +1,106 @@
+/*
+Copyright 2021 The KubeVela Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package usecase
+
+import (
+	"context"
+	"fmt"
+	"io/ioutil"
+
+	"github.com/oam-dev/kubevela/pkg/oam/util"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+	v1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"sigs.k8s.io/yaml"
+
+	"github.com/oam-dev/kubevela/apis/types"
+	"github.com/oam-dev/kubevela/pkg/apiserver/rest/utils"
+)
+
+var _ = Describe("addon usecase test", func() {
+	var ctx context.Context
+
+	BeforeEach(func() {
+		ctx = context.Background()
+		Expect(k8sClient.Create(ctx, &v1.Namespace{ObjectMeta: metav1.ObjectMeta{Name: types.DefaultKubeVelaNS}})).Should(SatisfyAny(BeNil(), util.AlreadyExistMatcher{}))
+	})
+
+	It("Test render customize ui-schema", func() {
+		schemaData, err := ioutil.ReadFile("testdata/addon-uischema-test.yaml")
+
+		addonName := "test"
+		Expect(err).Should(BeNil())
+		jsonData, err := yaml.YAMLToJSON(schemaData)
+		Expect(err).Should(BeNil())
+		cm := v1.ConfigMap{
+			TypeMeta:   metav1.TypeMeta{APIVersion: "v1", Kind: "ConfigMap"},
+			ObjectMeta: metav1.ObjectMeta{Namespace: types.DefaultKubeVelaNS, Name: fmt.Sprintf("addon-uischema-%s", addonName)},
+			Data: map[string]string{
+				types.UISchema: string(jsonData),
+			}}
+
+		Expect(k8sClient.Create(ctx, &cm)).Should(BeNil())
+		defaultSchema := []*utils.UIParameter{
+			{
+				JSONKey: "version",
+				Sort:    3,
+			},
+			{
+				JSONKey: "domain",
+				Sort:    8,
+			},
+		}
+		res := renderAddonCustomUISchema(ctx, k8sClient, addonName, defaultSchema)
+		Expect(len(res)).Should(BeEquivalentTo(2))
+		for _, re := range res {
+			if re.JSONKey == "version" {
+				Expect(re.Validate.DefaultValue.(string)).Should(BeEquivalentTo("1.2.0-rc1"))
+				Expect(re.Sort).Should(BeEquivalentTo(1))
+			}
+			if re.JSONKey == "domain" {
+				Expect(re.Sort).Should(BeEquivalentTo(9))
+			}
+		}
+	})
+
+	It("Test render without ui-schema", func() {
+		addonName := "test-without-schema"
+		defaultSchema := []*utils.UIParameter{
+			{
+				JSONKey: "version",
+				Sort:    3,
+			},
+			{
+				JSONKey: "domain",
+				Sort:    8,
+			},
+		}
+		res := renderAddonCustomUISchema(ctx, k8sClient, addonName, defaultSchema)
+		Expect(len(res)).Should(BeEquivalentTo(2))
+		for _, re := range res {
+			if re.JSONKey == "version" {
+				Expect(re.Validate).Should(BeNil())
+				Expect(re.Sort).Should(BeEquivalentTo(3))
+			}
+			if re.JSONKey == "domain" {
+				Expect(re.Sort).Should(BeEquivalentTo(8))
+			}
+		}
+	})
+})
diff --git a/pkg/apiserver/rest/usecase/testdata/addon-uischema-test.yaml b/pkg/apiserver/rest/usecase/testdata/addon-uischema-test.yaml
new file mode 100644
index 000000000..b08de0f4c
--- /dev/null
+++ b/pkg/apiserver/rest/usecase/testdata/addon-uischema-test.yaml
@@ -0,0 +1,18 @@
+- jsonKey: version
+  validate:
+    defaultValue: 1.2.0-rc1
+  sort: 1
+- jsonKey: dbType
+  label: DBType
+  validate:
+    defaultValue: kubeapi
+  sort: 3
+- jsonKey: dbURL
+  label: DBURL
+  sort: 5
+- jsonKey: database
+  sort: 7
+  validate:
+    defaultValue: kubevela
+- jsonKey: domain
+  sort: 9