The invention provides a skull pin with excellent disposability and the ability to reduce artifacts. The skull pin of the present invention is capable of fixing the head of an animal and comprises a body part of the skull pin having a first reinforced plastic, which includes 30 to 70 wt% of a first reinforcing fiber and 30 to 70 wt% of a first resin, and a tip part fixed to the tip of the body part, which is capable of contacting the head and includes at least one of metal, ceramics, cermet, and a second reinforced plastic.