The main points of the operation are as follows: the site and course of the scalp incision are the same as the standard pterygopoint craniotomy. After the scalp incision, instead of separating the superficial temporal fascia between the deep and superficial layers according to the classical method, the superficial temporal fascia and deep temporal fascia are cut along the scalp incision to the surface of the temporal muscle; and then the scalp-temporal fascia flap is turned forward in one layer along with the frontal bone periosteum by sharply separating the temporal fascia from the surface of the temporal muscle. In this way, the temporal branch of facial nerve is contained in this scalp-temporal fascia flap without the risk of severance and damage; after that, the operation is continued on the temporal muscle according to the pterygoid point craniotomy method; when the cranium is closed, this skin-temporal fascia flap is reset and sutured in alignment layer by layer. This method has the following advantages: 1. The anatomical level is clear, easy to operate and easy to master. The temporal fascia is like dura mater, attached to the surface of the temporalis muscle, which is easy to identify, and there is no close adhesion between it and the temporalis muscle fibers, so it is easy to be separated; 2, the temporal branch of the facial nerve is wrapped in the scalp-temporal fascial flap, which avoids the possible damage caused by separation around the nerve; 3, the skin-temporal fascial flap and the temporalis muscle-periosteal flap can be separated from each other. The skin-temporal fascial flap and the temporalis muscle flap can be turned forward and downward respectively, so as to obtain the largest range of field exposure, and both free bone flaps and tipped bone flaps can be used, which can be completed by using basic craniotomy instruments.