The present invention relates to the technical field of medical instruments, and in particular, to an absorbable skull fixing lock system and a method of using same. The absorbable skull fixing lock system includes an absorbable skull fixing lock and a locker. The absorbable skull fixing lock system may be used by means of correct implantation of the absorbable skull fixing lock, and pre-locking and final locking of the absorbable skull fixing lock. The present invention is easy to operate and needs no additional instrument in a skull fixation operation; the present invention is quick and timesaving, and thus reduces the operation time; due to the elliptical design of a locking surface, the locking surface is more reliable and safer; due to the toothed design of the locking surface, no shift occurs, so that a lock body is safer and does not slip off; by means of a fixing pin, it is ensured that two lock plates can be center-aligned when the two lock plates are locked, and the alignment is good; a force limiting valve is designed to ensure that the lock body is safer, and ensure that the locking force applied to each lock body by a doctor when locking the fixing lock is the same.