The present invention belongs to the field of wigs, and discloses a detachable wig headgear, including a rear end part, a front end part connected to the rear end part, and a zipper provided between the rear end part and the front end part. In the present invention, a zipper structure is adopted to detachably connect the front end part and the rear end part. If there is a need to change the styling of wigs or the wig headgear is damaged, the wig headgear needs to be replaced. The front end part and the rear end part of the wig headgear may be split by the zipper. Then, a part that is needed to be changed or a damaged part is replaced. Finally, the zipper is used to connect the front end part and the rear end part, which saves costs significantly.