Ossifying fibroma is a benign tumor composed of a mixture of fibrous tissue and bone-like tissue, most commonly found in the jawbone, but can also occur in other parts of the body, such as the long bones. The principle of treatment is surgery. Previously, the principle of surgical treatment required removal of all tumors. If the tumor is large, osteotomy is required. The current treatment principle is that if the tumor is small, it can be observed. If the tumor in the maxillofacial region is large, the protruding part of the tumor has to be removed, so that the symmetry of the two sides of the face can be achieved. Most of the other parts of the face choose lesion scraping and bone grafting, and recurrence is rare after surgery, and the prognosis is good with close follow-up and observation of disease changes after surgery.