A hook handle assembly is disclosed to include a mount, which has a first mounting portion affixed to a golf bag and a second mounting portion with positioning grooves protruded from the first mounting portion, a handlebar pivoted to the second mounting portion of the mount and positionable in the positioning grooves of the mount, and a hook grip, which has a mounting block pivoted to one end of handlebar remote from the mount, a hook-like grip body extended from the mounting block for grasping by the user or hooking on a handrail or support, and an adjustable fastener for securing the hook grip in place after hooking of the hook-like grip body on a handrail or support.