diff --git a/config/samples/application/README.md b/config/samples/application/README.md
index f4c8afc70..8469857e7 100644
--- a/config/samples/application/README.md
+++ b/config/samples/application/README.md
@@ -158,7 +158,7 @@ spec:
   extension:
     template: |-
       patch: {spec: template: metadata: labels: app: context.name}
-      output: {
+      outputs: service: {
         apiVersion: "v1"
         kind: "Service"
         metadata: name: context.name
diff --git a/config/samples/application/template.yaml b/config/samples/application/template.yaml
index 6a073ff66..c50afd63d 100644
--- a/config/samples/application/template.yaml
+++ b/config/samples/application/template.yaml
@@ -103,7 +103,7 @@ spec:
   extension:
     template: |-
       patch: {spec: template: metadata: labels: app: context.name}
-      output: {
+      outputs: service: {
         apiVersion: "v1"
         kind: "Service"
         metadata: name: context.name
diff --git a/docs/en/cue/trait.md b/docs/en/cue/trait.md
index f5f2b2e1d..fd2934da8 100644
--- a/docs/en/cue/trait.md
+++ b/docs/en/cue/trait.md
@@ -4,9 +4,10 @@ In this section we will introduce how to define a Trait with CUE template.
 
 ## Composition
  
-Defining a *Trait* with CUE template is a bit different from *Workload Type*: a trait MUST use `outputs` keyword instead of `output` to define template.
+Defining a *Trait* with CUE template is a bit different from *Workload Type*: a trait MUST use `outputs` keyword instead of `output` in template.
 
-With the help of CUE template, it is very nature to compose multiple Kubernetes resources in one trait. Similarly, the format MUST be `outputs:<unique-name>:<full template>`.
+With the help of CUE template, it is very nature to compose multiple Kubernetes resources in one trait.
+Similarly, the format MUST be `outputs:<unique-name>:<full template>`.
 
 Below is an example for `ingress` trait.
 
@@ -147,7 +148,7 @@ spec:
 
 ## Patch Trait
 
-You could also use keyword `patch` to patch data to the component instance (before the resource is applied) and claim this behavior as a trait.
+You could also use keyword `patch` to patch data to the component instance (before the resource applied) and claim this behavior as a trait.
  
 Below is an example for `node-affinity` trait:
 
@@ -356,6 +357,7 @@ please make sure the trait resource name is unique, or the former data will be c
 Below is an example
 1. the main workload object(Deployment) in this example will render into the context.output before rendering traits.
 2. the context.outputs.<xx> will keep all these rendered trait data and can be used in the traits after them.
+
 ```yaml
 apiVersion: core.oam.dev/v1alpha2
 kind: WorkloadDefinition
diff --git a/docs/en/platform-engineers/trait.md b/docs/en/platform-engineers/trait.md
index 6ca6e969b..1ec6be7e3 100644
--- a/docs/en/platform-engineers/trait.md
+++ b/docs/en/platform-engineers/trait.md
@@ -106,7 +106,7 @@ Platform builders only need to declare this info here once, then the OAM framewo
 ```yaml
 ...
     template: |
-      output: {
+      outputs: kubewatch: {
         apiVersion: "labs.bitnami.com/v1alpha1"
         kind:       "KubeWatch"
         spec: handler: webhook: url: parameter.webhook
diff --git a/pkg/appfile/parser_test.go b/pkg/appfile/parser_test.go
index 00e5ca8c8..8402fa494 100644
--- a/pkg/appfile/parser_test.go
+++ b/pkg/appfile/parser_test.go
@@ -96,7 +96,7 @@ var expectedExceptApp = &Appfile{
 						"replicas": float64(10),
 					},
 					Template: `
-      output: {
+      outputs:scaler: {
       	apiVersion: "core.oam.dev/v1alpha2"
       	kind:       "ManualScalerTrait"
       	spec: {
@@ -130,7 +130,7 @@ spec:
   workloadRefPath: spec.workloadRef
   extension:
     template: |-
-      output: {
+      outputs: scaler: {
       	apiVersion: "core.oam.dev/v1alpha2"
       	kind:       "ManualScalerTrait"
       	spec: {
@@ -344,7 +344,7 @@ var _ = Describe("Test appFile parser", func() {
 							"replicas": float64(10),
 						},
 						Template: `
-      output: {
+      outputs: scaler: {
       	apiVersion: "core.oam.dev/v1alpha2"
       	kind:       "ManualScalerTrait"
       	spec: {
@@ -376,9 +376,10 @@ var _ = Describe("Test appFile parser", func() {
 				"kind":       "ManualScalerTrait",
 				"metadata": map[string]interface{}{
 					"labels": map[string]interface{}{
-						"app.oam.dev/component": "myweb",
-						"app.oam.dev/name":      "test",
-						"trait.oam.dev/type":    "scaler",
+						"app.oam.dev/component":  "myweb",
+						"app.oam.dev/name":       "test",
+						"trait.oam.dev/type":     "scaler",
+						"trait.oam.dev/resource": "scaler",
 					},
 				},
 				"spec": map[string]interface{}{"replicaCount": int64(10)},
diff --git a/pkg/controller/core.oam.dev/v1alpha2/application/application_controller_test.go b/pkg/controller/core.oam.dev/v1alpha2/application/application_controller_test.go
index 9a1434a1f..76a862be2 100644
--- a/pkg/controller/core.oam.dev/v1alpha2/application/application_controller_test.go
+++ b/pkg/controller/core.oam.dev/v1alpha2/application/application_controller_test.go
@@ -132,9 +132,10 @@ var _ = Describe("Test Application Controller", func() {
 			"kind":       "ManualScalerTrait",
 			"metadata": map[string]interface{}{
 				"labels": map[string]interface{}{
-					"trait.oam.dev/type":    "scaler",
-					"app.oam.dev/component": compName,
-					"app.oam.dev/name":      appName,
+					"trait.oam.dev/type":     "scaler",
+					"app.oam.dev/component":  compName,
+					"app.oam.dev/name":       appName,
+					"trait.oam.dev/resource": "scaler",
 				},
 			},
 			"spec": map[string]interface{}{
@@ -741,9 +742,10 @@ var _ = Describe("Test Application Controller", func() {
 		expTrait.SetName(app.Name)
 		expTrait.SetNamespace(app.Namespace)
 		expTrait.SetLabels(map[string]string{
-			oam.LabelAppName:        app.Name,
-			"trait.oam.dev/type":    "scaler",
-			"app.oam.dev/component": "myweb-health",
+			oam.LabelAppName:         app.Name,
+			"trait.oam.dev/type":     "scaler",
+			"app.oam.dev/component":  "myweb-health",
+			"trait.oam.dev/resource": "scaler",
 		})
 		(expTrait.Object["spec"].(map[string]interface{}))["workloadRef"] = map[string]interface{}{
 			"apiVersion": "apps/v1",
@@ -1369,7 +1371,7 @@ spec:
   workloadRefPath: spec.workloadRef
   extension:
     template: |-
-      output: {
+      outputs: scaler: {
       	apiVersion: "core.oam.dev/v1alpha2"
       	kind:       "ManualScalerTrait"
       	spec: {
@@ -1398,7 +1400,7 @@ spec:
   workloadRefPath: spec.workloadRef
   extension:
     template: |-
-      output: {
+      outputs: scaler: {
       	apiVersion: "core.oam.dev/v1alpha2"
       	kind:       "ManualScalerTrait"
       	spec: {
@@ -1444,7 +1446,7 @@ spec:
     healthPolicy: |
       isHealth: context.output.status.conditions[0].status == "True"
     template: |-
-      output: {
+      outputs: scaler: {
       	apiVersion: "core.oam.dev/v1alpha2"
       	kind:       "ManualScalerTrait"
       	spec: {
diff --git a/pkg/cue/testdata/traits/manualscaler.cue b/pkg/cue/testdata/traits/manualscaler.cue
index 59f5af545..45dd37a24 100644
--- a/pkg/cue/testdata/traits/manualscaler.cue
+++ b/pkg/cue/testdata/traits/manualscaler.cue
@@ -1,4 +1,4 @@
-output: {
+outputs: scaler: {
 	apiVersion: "core.oam.dev/v1alpha2"
 	kind:       "ManualScalerTrait"
 	spec: {
diff --git a/pkg/cue/testdata/traits/rollout.cue b/pkg/cue/testdata/traits/rollout.cue
index 5481f32b5..747e44f7d 100644
--- a/pkg/cue/testdata/traits/rollout.cue
+++ b/pkg/cue/testdata/traits/rollout.cue
@@ -1,4 +1,4 @@
-output: {
+outputs: rollout: {
 	apiVersion: "extend.oam.dev/v1alpha2"
 	kind:       "SimpleRolloutTrait"
 	spec: {
diff --git a/pkg/cue/testdata/traits/route.cue b/pkg/cue/testdata/traits/route.cue
index 6121716d5..1d697596d 100644
--- a/pkg/cue/testdata/traits/route.cue
+++ b/pkg/cue/testdata/traits/route.cue
@@ -1,4 +1,4 @@
-output: {
+outputs: ingress: {
 	apiVersion: "networking.k8s.io/v1beta1"
 	kind:       "Ingress"
 	spec: {
diff --git a/pkg/cue/testdata/workloads/metrics.cue b/pkg/cue/testdata/workloads/metrics.cue
index e8ea06b9f..3859f08a7 100644
--- a/pkg/cue/testdata/workloads/metrics.cue
+++ b/pkg/cue/testdata/workloads/metrics.cue
@@ -7,7 +7,7 @@
 	// +usage=the label selector for the pods, default is the workload labels
 	selector?: [string]: string
 }
-output: {
+outputs: metrics: {
 	apiVersion: "standard.oam.dev/v1alpha1"
 	kind:       "MetricsTrait"
 	spec: {
diff --git a/pkg/dsl/definition/template.go b/pkg/dsl/definition/template.go
index b2d999753..87cb4bea8 100644
--- a/pkg/dsl/definition/template.go
+++ b/pkg/dsl/definition/template.go
@@ -119,7 +119,7 @@ func (wd *workloadDef) Complete(ctx process.Context, abstractTemplate string) er
 			if err != nil {
 				return errors.WithMessagef(err, "invalid outputs(%s) of workload %s", fieldInfo.Name, wd.name)
 			}
-			ctx.AppendAuxiliaries(process.Auxiliary{Ins: other, Type: AuxiliaryWorkload, Name: fieldInfo.Name, IsOutputs: true})
+			ctx.AppendAuxiliaries(process.Auxiliary{Ins: other, Type: AuxiliaryWorkload, Name: fieldInfo.Name})
 		}
 	}
 	return nil
@@ -291,14 +291,6 @@ func (td *traitDef) Complete(ctx process.Context, abstractTemplate string) error
 			}
 		}
 
-		output := inst.Lookup(OutputFieldName)
-		if output.Exists() {
-			other, err := model.NewOther(output)
-			if err != nil {
-				return errors.WithMessagef(err, "invalid output of trait %s", td.name)
-			}
-			ctx.AppendAuxiliaries(process.Auxiliary{Ins: other, Type: td.name, IsOutputs: false})
-		}
 		outputs := inst.Lookup(OutputsFieldName)
 		if outputs.Exists() {
 			st, err := outputs.Struct()
@@ -314,7 +306,7 @@ func (td *traitDef) Complete(ctx process.Context, abstractTemplate string) error
 				if err != nil {
 					return errors.WithMessagef(err, "invalid outputs(resource=%s) of trait %s", fieldInfo.Name, td.name)
 				}
-				ctx.AppendAuxiliaries(process.Auxiliary{Ins: other, Type: td.name, Name: fieldInfo.Name, IsOutputs: true})
+				ctx.AppendAuxiliaries(process.Auxiliary{Ins: other, Type: td.name, Name: fieldInfo.Name})
 			}
 		}
 
@@ -361,11 +353,7 @@ func (td *traitDef) getTemplateContext(ctx process.Context, cli client.Reader, n
 		if err != nil {
 			return nil, err
 		}
-		if assist.IsOutputs {
-			outputs[assist.Name] = object
-		} else {
-			root[OutputFieldName] = object
-		}
+		outputs[assist.Name] = object
 	}
 	if len(outputs) > 0 {
 		root[OutputsFieldName] = outputs
diff --git a/pkg/dsl/definition/template_test.go b/pkg/dsl/definition/template_test.go
index 8719272f7..f013b5ffb 100644
--- a/pkg/dsl/definition/template_test.go
+++ b/pkg/dsl/definition/template_test.go
@@ -160,7 +160,7 @@ parameter: {
 		},
 		"output trait": {
 			traitTemplate: `
-output: {
+outputs: service: {
 	apiVersion: "v1"
     kind: "Service"
 	metadata: name: context.name
@@ -202,12 +202,12 @@ parameter: {
 						"kind":       "ConfigMap",
 						"metadata":   map[string]interface{}{"name": "testgame-config"}, "data": map[string]interface{}{"enemies": "enemies-data", "lives": "lives-data"}},
 				},
-				"t1": &unstructured.Unstructured{Object: map[string]interface{}{"apiVersion": "v1", "kind": "Service", "metadata": map[string]interface{}{"name": "test"}, "spec": map[string]interface{}{"type": "ClusterIP"}}},
+				"t1service": &unstructured.Unstructured{Object: map[string]interface{}{"apiVersion": "v1", "kind": "Service", "metadata": map[string]interface{}{"name": "test"}, "spec": map[string]interface{}{"type": "ClusterIP"}}},
 			},
 		},
 		"outputs trait": {
 			traitTemplate: `
-output: {
+outputs: service: {
 	apiVersion: "v1"
     kind: "Service"
 	metadata: name: context.name
@@ -257,7 +257,7 @@ parameter: {
 						"kind":       "ConfigMap",
 						"metadata":   map[string]interface{}{"name": "testgame-config"}, "data": map[string]interface{}{"enemies": "enemies-data", "lives": "lives-data"}},
 				},
-				"t2": &unstructured.Unstructured{Object: map[string]interface{}{"apiVersion": "v1", "kind": "Service", "metadata": map[string]interface{}{"name": "test"}, "spec": map[string]interface{}{"type": "ClusterIP"}}},
+				"t2service": &unstructured.Unstructured{Object: map[string]interface{}{"apiVersion": "v1", "kind": "Service", "metadata": map[string]interface{}{"name": "test"}, "spec": map[string]interface{}{"type": "ClusterIP"}}},
 				"t2ingress": &unstructured.Unstructured{Object: map[string]interface{}{"apiVersion": "extensions/v1beta1", "kind": "Ingress", "metadata": map[string]interface{}{"name": "test"}, "spec": map[string]interface{}{"rules": []interface{}{map[string]interface{}{
 					"host": "example.com",
 				}}}}},
@@ -425,7 +425,7 @@ parameter: {
 		for _, ss := range assists {
 			got, err := ss.Ins.Unstructured()
 			assert.NoError(t, err, cassinfo)
-			assert.Equal(t, v.expAssObjs[ss.Type+ss.Name], got, cassinfo, ss.Type+ss.Name)
+			assert.Equal(t, v.expAssObjs[ss.Type+ss.Name], got, "case %s , type: %s name: %s", cassinfo, ss.Type, ss.Name)
 		}
 	}
 }
diff --git a/pkg/dsl/process/handle.go b/pkg/dsl/process/handle.go
index 6d123802b..260350ba7 100644
--- a/pkg/dsl/process/handle.go
+++ b/pkg/dsl/process/handle.go
@@ -33,6 +33,7 @@ type Context interface {
 }
 
 // Auxiliary are objects rendered by definition template.
+// the format for auxiliary resource is always: `outputs.<resourceName>`, it can be auxiliary workload or trait
 type Auxiliary struct {
 	Ins model.Instance
 	// Type will be used to mark definition label for OAM runtime to get the CRD
@@ -41,12 +42,6 @@ type Auxiliary struct {
 
 	// Workload or trait with multiple `outputs` will have a name, if name is empty, than it's the main of this type.
 	Name string
-
-	// IsOutputs will record the output path format of the Auxiliary
-	// it can be one of these two cases:
-	// false: the format is `output`, this means it's the main resource of the trait
-	// true: the format is `outputs.<resourceName>`, this means it can be auxiliary workload or trait
-	IsOutputs bool
 }
 
 type templateContext struct {
@@ -99,9 +94,7 @@ func (ctx *templateContext) BaseContextFile() string {
 	if len(ctx.auxiliaries) > 0 {
 		var auxLines []string
 		for _, auxiliary := range ctx.auxiliaries {
-			if auxiliary.IsOutputs {
-				auxLines = append(auxLines, fmt.Sprintf("%s: %s", auxiliary.Name, structMarshal(auxiliary.Ins.String())))
-			}
+			auxLines = append(auxLines, fmt.Sprintf("%s: %s", auxiliary.Name, structMarshal(auxiliary.Ins.String())))
 		}
 		if len(auxLines) > 0 {
 			buff += fmt.Sprintf(OutputsFieldName+": {%s}\n", strings.Join(auxLines, "\n"))
diff --git a/pkg/dsl/process/handle_test.go b/pkg/dsl/process/handle_test.go
index 3cc844c4d..e3410b76d 100644
--- a/pkg/dsl/process/handle_test.go
+++ b/pkg/dsl/process/handle_test.go
@@ -44,9 +44,8 @@ image: "myserver"
 	}
 
 	svcAux := Auxiliary{
-		Ins:       svcIns,
-		Name:      "service",
-		IsOutputs: true,
+		Ins:  svcIns,
+		Name: "service",
 	}
 
 	ctx := NewContext("mycomp", "myapp")
diff --git a/pkg/webhook/core.oam.dev/v1alpha2/application/suite_test.go b/pkg/webhook/core.oam.dev/v1alpha2/application/suite_test.go
index 142c0d42b..8a36e562d 100644
--- a/pkg/webhook/core.oam.dev/v1alpha2/application/suite_test.go
+++ b/pkg/webhook/core.oam.dev/v1alpha2/application/suite_test.go
@@ -172,7 +172,7 @@ spec:
   workloadRefPath: spec.workloadRef
   extension:
     template: |-
-      output: {
+      outputs: scaler: {
       	apiVersion: "core.oam.dev/v1alpha2"
       	kind:       "ManualScalerTrait"
       	spec: {
diff --git a/references/plugins/testdata/manualscalars.yaml b/references/plugins/testdata/manualscalars.yaml
index 6a4283aa5..8103acb70 100644
--- a/references/plugins/testdata/manualscalars.yaml
+++ b/references/plugins/testdata/manualscalars.yaml
@@ -12,7 +12,7 @@ spec:
   workloadRefPath: spec.workloadRef
   extension:
     template: |-
-      output: {
+      outputs: scaler: {
       	apiVersion: "core.oam.dev/v1alpha2"
       	kind:       "ManualScalerTrait"
       	spec: {
diff --git a/references/plugins/testdata/traitDef.yaml b/references/plugins/testdata/traitDef.yaml
index d5569fb21..d311d31e4 100644
--- a/references/plugins/testdata/traitDef.yaml
+++ b/references/plugins/testdata/traitDef.yaml
@@ -9,7 +9,7 @@ spec:
     name: routes.standard.oam.dev
   extension:
     template: |
-      output: {
+      outputs: route: {
       	spec: {
       		domain: parameter.domain
       	}