diff --git a/src/azure-cli/azure/cli/command_modules/acs/_consts.py b/src/azure-cli/azure/cli/command_modules/acs/_consts.py
index 975846f6909..7e696993ba3 100644
--- a/src/azure-cli/azure/cli/command_modules/acs/_consts.py
+++ b/src/azure-cli/azure/cli/command_modules/acs/_consts.py
@@ -38,6 +38,7 @@
 CONST_OS_SKU_WINDOWS2022 = "Windows2022"
 CONST_OS_SKU_AZURELINUX = "AzureLinux"
 CONST_OS_SKU_UBUNTU2204 = "Ubuntu2204"
+CONST_OS_SKU_UBUNTU2404 = "Ubuntu2404"
 
 # vm set type
 CONST_VIRTUAL_MACHINE_SCALE_SETS = "VirtualMachineScaleSets"
diff --git a/src/azure-cli/azure/cli/command_modules/acs/_help.py b/src/azure-cli/azure/cli/command_modules/acs/_help.py
index 3560e31c2c5..2b73f5574c4 100644
--- a/src/azure-cli/azure/cli/command_modules/acs/_help.py
+++ b/src/azure-cli/azure/cli/command_modules/acs/_help.py
@@ -1617,7 +1617,7 @@
     short-summary: The OS Type. Linux or Windows.
   - name: --os-sku
     type: string
-    short-summary: The OS SKU of the agent node pool. Ubuntu, AzureLinux or Ubuntu2204 for Linux. Windows2019 or Windows2022 for Windows.
+    short-summary: The OS SKU of the agent node pool. Ubuntu, AzureLinux, Ubuntu2204 or Ubuntu2404 for Linux. Windows2019 or Windows2022 for Windows.
   - name: --enable-cluster-autoscaler -e
     type: bool
     short-summary: Enable cluster autoscaler.
diff --git a/src/azure-cli/azure/cli/command_modules/acs/_params.py b/src/azure-cli/azure/cli/command_modules/acs/_params.py
index e68cf3f9e43..65a0ebd4950 100644
--- a/src/azure-cli/azure/cli/command_modules/acs/_params.py
+++ b/src/azure-cli/azure/cli/command_modules/acs/_params.py
@@ -33,7 +33,7 @@
     CONST_NODEPOOL_MODE_SYSTEM, CONST_NODEPOOL_MODE_USER, CONST_NODEPOOL_MODE_GATEWAY,
     CONST_OS_DISK_TYPE_EPHEMERAL, CONST_OS_DISK_TYPE_MANAGED,
     CONST_OS_SKU_AZURELINUX, CONST_OS_SKU_CBLMARINER, CONST_OS_SKU_MARINER,
-    CONST_OS_SKU_UBUNTU, CONST_OS_SKU_UBUNTU2204,
+    CONST_OS_SKU_UBUNTU, CONST_OS_SKU_UBUNTU2204, CONST_OS_SKU_UBUNTU2404,
     CONST_OS_SKU_WINDOWS2019, CONST_OS_SKU_WINDOWS2022,
     CONST_OUTBOUND_TYPE_LOAD_BALANCER, CONST_OUTBOUND_TYPE_MANAGED_NAT_GATEWAY,
     CONST_OUTBOUND_TYPE_USER_ASSIGNED_NAT_GATEWAY,
@@ -163,9 +163,9 @@
 node_eviction_policies = [CONST_SPOT_EVICTION_POLICY_DELETE, CONST_SPOT_EVICTION_POLICY_DEALLOCATE]
 node_os_disk_types = [CONST_OS_DISK_TYPE_MANAGED, CONST_OS_DISK_TYPE_EPHEMERAL]
 node_mode_types = [CONST_NODEPOOL_MODE_SYSTEM, CONST_NODEPOOL_MODE_USER, CONST_NODEPOOL_MODE_GATEWAY]
-node_os_skus_create = [CONST_OS_SKU_AZURELINUX, CONST_OS_SKU_UBUNTU, CONST_OS_SKU_CBLMARINER, CONST_OS_SKU_MARINER, CONST_OS_SKU_UBUNTU2204]
+node_os_skus_create = [CONST_OS_SKU_AZURELINUX, CONST_OS_SKU_UBUNTU, CONST_OS_SKU_CBLMARINER, CONST_OS_SKU_MARINER, CONST_OS_SKU_UBUNTU2204, CONST_OS_SKU_UBUNTU2404]
 node_os_skus = node_os_skus_create + [CONST_OS_SKU_WINDOWS2019, CONST_OS_SKU_WINDOWS2022]
-node_os_skus_update = [CONST_OS_SKU_AZURELINUX, CONST_OS_SKU_UBUNTU, CONST_OS_SKU_UBUNTU2204]
+node_os_skus_update = [CONST_OS_SKU_AZURELINUX, CONST_OS_SKU_UBUNTU, CONST_OS_SKU_UBUNTU2204, CONST_OS_SKU_UBUNTU2404]
 scale_down_modes = [CONST_SCALE_DOWN_MODE_DELETE, CONST_SCALE_DOWN_MODE_DEALLOCATE]
 pod_ip_allocation_modes = [CONST_NETWORK_POD_IP_ALLOCATION_MODE_DYNAMIC_INDIVIDUAL, CONST_NETWORK_POD_IP_ALLOCATION_MODE_STATIC_BLOCK]