diff --git a/internal/pkg/api/device/ascend/device.go b/internal/pkg/api/device/ascend/device.go
index dc3edf2..4da7ea8 100644
--- a/internal/pkg/api/device/ascend/device.go
+++ b/internal/pkg/api/device/ascend/device.go
@@ -41,14 +41,22 @@ type VNPUConfig struct {
 	ChipName           string     `yaml:"chipName"`
 	ResourceName       string     `yaml:"resourceName"`
 	ResourceMemoryName string     `yaml:"resourceMemoryName"`
+	ResourceCoreName   string     `yaml:"resourceCoreName"`
 	MemoryAllocatable  int64      `yaml:"memoryAllocatable"`
 	MemoryCapacity     int64      `yaml:"memoryCapacity"`
 	MemoryFactor       int32      `yaml:"memoryFactor"`
 	AICore             int32      `yaml:"aiCore"`
 	AICPU              int32      `yaml:"aiCPU"`
+	RuntimeClassName   string     `yaml:"runtimeClassName"`
+	OverwriteEnv       bool       `yaml:"overwriteEnv"`
 	Templates          []Template `yaml:"templates"`
 }
 
+type VNPUs struct {
+	HamiVnpuCore bool         `yaml:"hamiVnpuCore"`
+	Configs      []VNPUConfig `yaml:"configs"`
+}
+
 type Devices struct {
 	config           VNPUConfig
 	nodeRegisterAnno string
diff --git a/internal/pkg/api/device/device.go b/internal/pkg/api/device/device.go
index 60a61a6..860d41e 100644
--- a/internal/pkg/api/device/device.go
+++ b/internal/pkg/api/device/device.go
@@ -52,12 +52,14 @@ type DeviceInfo struct {
 
 type MigTemplate struct {
 	Name   string `yaml:"name"`
+	Core   int32  `yaml:"core"`
 	Memory int32  `yaml:"memory"`
 	Count  int32  `yaml:"count"`
 }
 
 type MigTemplateUsage struct {
 	Name   string `json:"name,omitempty"`
+	Core   int32  `json:"core,omitempty"`
 	Memory int32  `json:"memory,omitempty"`
 	InUse  bool   `json:"inuse,omitempty"`
 }
diff --git a/internal/pkg/config/config.go b/internal/pkg/config/config.go
index d7a7dfc..998b6c4 100644
--- a/internal/pkg/config/config.go
+++ b/internal/pkg/config/config.go
@@ -48,7 +48,7 @@ type Config struct {
 	KunlunConfig    kunlun.KunlunConfig       `yaml:"kunlun"`
 	AWSNeuronConfig awsneuron.AWSNeuronConfig `yaml:"awsneuron"`
 	AMDGPUConfig    amd.AMDConfig             `yaml:"amd"`
-	VNPUs           []ascend.VNPUConfig       `yaml:"vnpus"`
+	VNPUs           ascend.VNPUs              `yaml:"vnpus"`
 }
 
 var (
@@ -76,7 +76,7 @@ func InitDevicesWithConfig(config *Config) error {
 	if amdDevice != nil {
 		device.DevicesMap[amdDevice.CommonWord()] = amdDevice
 	}*/
-	for _, dev := range ascend.InitDevices(config.VNPUs) {
+	for _, dev := range ascend.InitDevices(config.VNPUs.Configs) {
 		commonWord := dev.CommonWord()
 		device.DevicesMap[commonWord] = dev
 		klog.Infof("Ascend device %s initialized", commonWord)
diff --git a/internal/pkg/config/config_test.go b/internal/pkg/config/config_test.go
new file mode 100644
index 0000000..9752682
--- /dev/null
+++ b/internal/pkg/config/config_test.go
@@ -0,0 +1,138 @@
+/*
+Copyright 2025 The HAMi 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 config
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	deviceapi "github.com/HAMi/mock-device-plugin/internal/pkg/api/device"
+	"github.com/HAMi/mock-device-plugin/internal/pkg/api/device/ascend"
+)
+
+func writeTempConfig(t *testing.T, body string) string {
+	t.Helper()
+
+	path := filepath.Join(t.TempDir(), "device-config.yaml")
+	if err := os.WriteFile(path, []byte(body), 0o600); err != nil {
+		t.Fatalf("write config: %v", err)
+	}
+	return path
+}
+
+func TestLoadConfigLoadsLatestWrappedVNPUs(t *testing.T) {
+	path := writeTempConfig(t, `vnpus:
+  hamiVnpuCore: true
+  configs:
+    - commonWord: Ascend910A
+      chipName: 910A
+      resourceName: huawei.com/Ascend910A
+      resourceMemoryName: huawei.com/Ascend910A-memory
+      resourceCoreName: huawei.com/Ascend910A-core
+      memoryAllocatable: 32768
+      memoryCapacity: 32768
+      memoryFactor: 1
+      aiCore: 20
+      aiCPU: 7
+      runtimeClassName: hami-ascend
+      overwriteEnv: true
+      templates:
+        - name: vir05_1c_8g
+          memory: 8192
+          aiCore: 5
+          aiCPU: 1
+`)
+
+	cfg, err := LoadConfig(path)
+	if err != nil {
+		t.Fatalf("LoadConfig returned error: %v", err)
+	}
+
+	if !cfg.VNPUs.HamiVnpuCore {
+		t.Fatalf("expected HamiVnpuCore=true")
+	}
+	if len(cfg.VNPUs.Configs) != 1 {
+		t.Fatalf("expected 1 VNPU config, got %d", len(cfg.VNPUs.Configs))
+	}
+
+	got := cfg.VNPUs.Configs[0]
+	if got.ResourceCoreName != "huawei.com/Ascend910A-core" {
+		t.Fatalf("unexpected ResourceCoreName: %s", got.ResourceCoreName)
+	}
+	if got.RuntimeClassName != "hami-ascend" {
+		t.Fatalf("unexpected RuntimeClassName: %s", got.RuntimeClassName)
+	}
+	if !got.OverwriteEnv {
+		t.Fatalf("expected OverwriteEnv=true")
+	}
+}
+
+func TestLoadConfigRejectsFlatVNPUsShape(t *testing.T) {
+	path := writeTempConfig(t, `vnpus:
+  - commonWord: Ascend910A
+    chipName: 910A
+    resourceName: huawei.com/Ascend910A
+    resourceMemoryName: huawei.com/Ascend910A-memory
+    memoryAllocatable: 32768
+    memoryCapacity: 32768
+    memoryFactor: 1
+`)
+
+	_, err := LoadConfig(path)
+	if err == nil {
+		t.Fatalf("expected LoadConfig to reject flat vnpus shape")
+	}
+}
+
+func TestInitDevicesWithConfigUsesWrappedConfigs(t *testing.T) {
+	t.Cleanup(func() {
+		deviceapi.DevicesMap = nil
+	})
+
+	cfg := &Config{
+		VNPUs: ascend.VNPUs{
+			Configs: []ascend.VNPUConfig{
+				{
+					CommonWord:         "Ascend910A",
+					ChipName:           "910A",
+					ResourceName:       "huawei.com/Ascend910A",
+					ResourceMemoryName: "huawei.com/Ascend910A-memory",
+					ResourceCoreName:   "huawei.com/Ascend910A-core",
+					MemoryAllocatable:  32768,
+					MemoryCapacity:     32768,
+					MemoryFactor:       1,
+					AICore:             20,
+					AICPU:              7,
+					RuntimeClassName:   "hami-ascend",
+					OverwriteEnv:       true,
+					Templates: []ascend.Template{
+						{Name: "vir05_1c_8g", Memory: 8192, AICore: 5, AICPU: 1},
+					},
+				},
+			},
+		},
+	}
+
+	if err := InitDevicesWithConfig(cfg); err != nil {
+		t.Fatalf("InitDevicesWithConfig returned error: %v", err)
+	}
+
+	if _, ok := deviceapi.DevicesMap["Ascend910A"]; !ok {
+		t.Fatalf("expected Ascend910A device to be registered from wrapped configs")
+	}
+}