# Delete a Lifecycle Definition
Click Settings, click the lifecycle tab, enter the lifecycle management interface, check the checkbox of the lifecycle name to be deleted in the lifecycle template list of the lifecycle management workspace, and click the Delete button on the top toolbar to open the deletion confirmation dialog box.
*The built-in life cycle of the system cannot be deleted, and the life cycle used by the project cannot be deleted
Click the Confirm button in the Delete Confirmation dialog box to wait for the prompt message