diff --git a/charts/gateway-helm/README.md b/charts/gateway-helm/README.md
index 64cf772ecb..b808afcb51 100644
--- a/charts/gateway-helm/README.md
+++ b/charts/gateway-helm/README.md
@@ -60,7 +60,7 @@ To uninstall the chart:
 | Key | Type | Default | Description |
 |-----|------|---------|-------------|
 | certgen | object | `{"job":{"affinity":{},"annotations":{},"args":[],"nodeSelector":{},"resources":{},"securityContext":{"allowPrivilegeEscalation":false,"capabilities":{"drop":["ALL"]},"privileged":false,"readOnlyRootFilesystem":true,"runAsGroup":65534,"runAsNonRoot":true,"runAsUser":65534,"seccompProfile":{"type":"RuntimeDefault"}},"tolerations":[],"ttlSecondsAfterFinished":30},"rbac":{"annotations":{},"labels":{}}}` | Certgen is used to generate the certificates required by EnvoyGateway. If you want to construct a custom certificate, you can generate a custom certificate through Cert-Manager before installing EnvoyGateway. Certgen will not overwrite the custom certificate. Please do not manually modify `values.yaml` to disable certgen, it may cause EnvoyGateway OIDC,OAuth2,etc. to not work as expected. |
-| config.envoyGateway | object | `{"gateway":{"controllerName":"gateway.envoyproxy.io/gatewayclass-controller"},"logging":{"level":{"default":"info"}},"provider":{"type":"Kubernetes"}}` | EnvoyGateway configuration. Visit https://gateway.envoyproxy.io/docs/api/extension_types/#envoygateway to view all options. |
+| config.envoyGateway | object | `{"extensionApis":{},"gateway":{"controllerName":"gateway.envoyproxy.io/gatewayclass-controller"},"logging":{"level":{"default":"info"}},"provider":{"type":"Kubernetes"}}` | EnvoyGateway configuration. Visit https://gateway.envoyproxy.io/docs/api/extension_types/#envoygateway to view all options. |
 | createNamespace | bool | `false` |  |
 | deployment.envoyGateway.image.repository | string | `""` |  |
 | deployment.envoyGateway.image.tag | string | `""` |  |
diff --git a/charts/gateway-helm/templates/_helpers.tpl b/charts/gateway-helm/templates/_helpers.tpl
index d9aefc2a84..d534528ff6 100755
--- a/charts/gateway-helm/templates/_helpers.tpl
+++ b/charts/gateway-helm/templates/_helpers.tpl
@@ -128,4 +128,8 @@ provider:
       {{- end }}
     shutdownManager:
       image: {{ include "eg.image" . }}
+{{- with .Values.config.envoyGateway.extensionApis }}
+extensionApis:
+  {{- toYaml . | nindent 2 }}
+{{- end }}
 {{- end }}
diff --git a/charts/gateway-helm/values.tmpl.yaml b/charts/gateway-helm/values.tmpl.yaml
index 0c166ad825..40f98707bd 100644
--- a/charts/gateway-helm/values.tmpl.yaml
+++ b/charts/gateway-helm/values.tmpl.yaml
@@ -93,6 +93,7 @@ config:
     logging:
       level:
         default: info
+    extensionApis: {}
 
 createNamespace: false
 
diff --git a/site/content/en/latest/install/gateway-helm-api.md b/site/content/en/latest/install/gateway-helm-api.md
index 7e44697a62..1c72e6ee72 100644
--- a/site/content/en/latest/install/gateway-helm-api.md
+++ b/site/content/en/latest/install/gateway-helm-api.md
@@ -24,7 +24,7 @@ The Helm chart for Envoy Gateway
 | Key | Type | Default | Description |
 |-----|------|---------|-------------|
 | certgen | object | `{"job":{"affinity":{},"annotations":{},"args":[],"nodeSelector":{},"resources":{},"securityContext":{"allowPrivilegeEscalation":false,"capabilities":{"drop":["ALL"]},"privileged":false,"readOnlyRootFilesystem":true,"runAsGroup":65534,"runAsNonRoot":true,"runAsUser":65534,"seccompProfile":{"type":"RuntimeDefault"}},"tolerations":[],"ttlSecondsAfterFinished":30},"rbac":{"annotations":{},"labels":{}}}` | Certgen is used to generate the certificates required by EnvoyGateway. If you want to construct a custom certificate, you can generate a custom certificate through Cert-Manager before installing EnvoyGateway. Certgen will not overwrite the custom certificate. Please do not manually modify `values.yaml` to disable certgen, it may cause EnvoyGateway OIDC,OAuth2,etc. to not work as expected. |
-| config.envoyGateway | object | `{"gateway":{"controllerName":"gateway.envoyproxy.io/gatewayclass-controller"},"logging":{"level":{"default":"info"}},"provider":{"type":"Kubernetes"}}` | EnvoyGateway configuration. Visit https://gateway.envoyproxy.io/docs/api/extension_types/#envoygateway to view all options. |
+| config.envoyGateway | object | `{"extensionApis":{},"gateway":{"controllerName":"gateway.envoyproxy.io/gatewayclass-controller"},"logging":{"level":{"default":"info"}},"provider":{"type":"Kubernetes"}}` | EnvoyGateway configuration. Visit https://gateway.envoyproxy.io/docs/api/extension_types/#envoygateway to view all options. |
 | createNamespace | bool | `false` |  |
 | deployment.envoyGateway.image.repository | string | `""` |  |
 | deployment.envoyGateway.image.tag | string | `""` |  |
diff --git a/test/helm/gateway-helm/certgen-args.out.yaml b/test/helm/gateway-helm/certgen-args.out.yaml
index d52753db28..166e1b85e3 100644
--- a/test/helm/gateway-helm/certgen-args.out.yaml
+++ b/test/helm/gateway-helm/certgen-args.out.yaml
@@ -28,6 +28,7 @@ data:
   envoy-gateway.yaml: |
     apiVersion: gateway.envoyproxy.io/v1alpha1
     kind: EnvoyGateway
+    extensionApis: {}
     gateway:
       controllerName: gateway.envoyproxy.io/gatewayclass-controller
     logging:
diff --git a/test/helm/gateway-helm/certjen-custom-scheduling.out.yaml b/test/helm/gateway-helm/certjen-custom-scheduling.out.yaml
index 37d0212f71..7be6626330 100644
--- a/test/helm/gateway-helm/certjen-custom-scheduling.out.yaml
+++ b/test/helm/gateway-helm/certjen-custom-scheduling.out.yaml
@@ -28,6 +28,7 @@ data:
   envoy-gateway.yaml: |
     apiVersion: gateway.envoyproxy.io/v1alpha1
     kind: EnvoyGateway
+    extensionApis: {}
     gateway:
       controllerName: gateway.envoyproxy.io/gatewayclass-controller
     logging:
diff --git a/test/helm/gateway-helm/control-plane-with-pdb.out.yaml b/test/helm/gateway-helm/control-plane-with-pdb.out.yaml
index 69f08e1dbb..b59dfb5b79 100644
--- a/test/helm/gateway-helm/control-plane-with-pdb.out.yaml
+++ b/test/helm/gateway-helm/control-plane-with-pdb.out.yaml
@@ -43,6 +43,7 @@ data:
   envoy-gateway.yaml: |
     apiVersion: gateway.envoyproxy.io/v1alpha1
     kind: EnvoyGateway
+    extensionApis: {}
     gateway:
       controllerName: gateway.envoyproxy.io/gatewayclass-controller
     logging:
diff --git a/test/helm/gateway-helm/default-config.out.yaml b/test/helm/gateway-helm/default-config.out.yaml
index 6e1b1846ba..4ebb13c564 100644
--- a/test/helm/gateway-helm/default-config.out.yaml
+++ b/test/helm/gateway-helm/default-config.out.yaml
@@ -28,6 +28,7 @@ data:
   envoy-gateway.yaml: |
     apiVersion: gateway.envoyproxy.io/v1alpha1
     kind: EnvoyGateway
+    extensionApis: {}
     gateway:
       controllerName: gateway.envoyproxy.io/gatewayclass-controller
     logging:
diff --git a/test/helm/gateway-helm/deployment-custom-topology.out.yaml b/test/helm/gateway-helm/deployment-custom-topology.out.yaml
index 0bc5809337..4d30304444 100644
--- a/test/helm/gateway-helm/deployment-custom-topology.out.yaml
+++ b/test/helm/gateway-helm/deployment-custom-topology.out.yaml
@@ -28,6 +28,7 @@ data:
   envoy-gateway.yaml: |
     apiVersion: gateway.envoyproxy.io/v1alpha1
     kind: EnvoyGateway
+    extensionApis: {}
     gateway:
       controllerName: gateway.envoyproxy.io/gatewayclass-controller
     logging:
diff --git a/test/helm/gateway-helm/deployment-images-config.out.yaml b/test/helm/gateway-helm/deployment-images-config.out.yaml
index f99a89039d..307abf9ee7 100644
--- a/test/helm/gateway-helm/deployment-images-config.out.yaml
+++ b/test/helm/gateway-helm/deployment-images-config.out.yaml
@@ -28,6 +28,7 @@ data:
   envoy-gateway.yaml: |
     apiVersion: gateway.envoyproxy.io/v1alpha1
     kind: EnvoyGateway
+    extensionApis: {}
     gateway:
       controllerName: gateway.envoyproxy.io/gatewayclass-controller
     logging:
diff --git a/test/helm/gateway-helm/deployment-priorityclass.out.yaml b/test/helm/gateway-helm/deployment-priorityclass.out.yaml
index 3757e360d9..389e070beb 100644
--- a/test/helm/gateway-helm/deployment-priorityclass.out.yaml
+++ b/test/helm/gateway-helm/deployment-priorityclass.out.yaml
@@ -28,6 +28,7 @@ data:
   envoy-gateway.yaml: |
     apiVersion: gateway.envoyproxy.io/v1alpha1
     kind: EnvoyGateway
+    extensionApis: {}
     gateway:
       controllerName: gateway.envoyproxy.io/gatewayclass-controller
     logging:
diff --git a/test/helm/gateway-helm/deployment-securitycontext.out.yaml b/test/helm/gateway-helm/deployment-securitycontext.out.yaml
index e98bd1e973..73cf210aae 100644
--- a/test/helm/gateway-helm/deployment-securitycontext.out.yaml
+++ b/test/helm/gateway-helm/deployment-securitycontext.out.yaml
@@ -28,6 +28,7 @@ data:
   envoy-gateway.yaml: |
     apiVersion: gateway.envoyproxy.io/v1alpha1
     kind: EnvoyGateway
+    extensionApis: {}
     gateway:
       controllerName: gateway.envoyproxy.io/gatewayclass-controller
     logging:
diff --git a/test/helm/gateway-helm/envoy-gateway-config.out.yaml b/test/helm/gateway-helm/envoy-gateway-config.out.yaml
index fb1e51f220..5a85a78ee5 100644
--- a/test/helm/gateway-helm/envoy-gateway-config.out.yaml
+++ b/test/helm/gateway-helm/envoy-gateway-config.out.yaml
@@ -28,6 +28,7 @@ data:
   envoy-gateway.yaml: |
     apiVersion: gateway.envoyproxy.io/v1alpha1
     kind: EnvoyGateway
+    extensionApis: {}
     gateway:
       controllerName: gateway.envoyproxy.io/gatewayclass-controller
     logging:
diff --git a/test/helm/gateway-helm/global-images-config.out.yaml b/test/helm/gateway-helm/global-images-config.out.yaml
index ebcda594b1..cdbf6a72e0 100644
--- a/test/helm/gateway-helm/global-images-config.out.yaml
+++ b/test/helm/gateway-helm/global-images-config.out.yaml
@@ -28,6 +28,7 @@ data:
   envoy-gateway.yaml: |
     apiVersion: gateway.envoyproxy.io/v1alpha1
     kind: EnvoyGateway
+    extensionApis: {}
     gateway:
       controllerName: gateway.envoyproxy.io/gatewayclass-controller
     logging:
diff --git a/test/helm/gateway-helm/horizontal-pod-autoscaler.out.yaml b/test/helm/gateway-helm/horizontal-pod-autoscaler.out.yaml
index fb75b1bf84..5f4a42ef05 100644
--- a/test/helm/gateway-helm/horizontal-pod-autoscaler.out.yaml
+++ b/test/helm/gateway-helm/horizontal-pod-autoscaler.out.yaml
@@ -28,6 +28,7 @@ data:
   envoy-gateway.yaml: |
     apiVersion: gateway.envoyproxy.io/v1alpha1
     kind: EnvoyGateway
+    extensionApis: {}
     gateway:
       controllerName: gateway.envoyproxy.io/gatewayclass-controller
     logging:
diff --git a/test/helm/gateway-helm/service-customization.out.yaml b/test/helm/gateway-helm/service-customization.out.yaml
index f72169d4f0..bec59b8914 100644
--- a/test/helm/gateway-helm/service-customization.out.yaml
+++ b/test/helm/gateway-helm/service-customization.out.yaml
@@ -28,6 +28,7 @@ data:
   envoy-gateway.yaml: |
     apiVersion: gateway.envoyproxy.io/v1alpha1
     kind: EnvoyGateway
+    extensionApis: {}
     gateway:
       controllerName: gateway.envoyproxy.io/gatewayclass-controller
     logging: