Purpose: Evaluated the function and aesthetic effect of using casting maxillary prosthesis to repair for 9 patients facial collapse due to the part of maxilla were excised in the tumor surgery Methods: Due to the part of maxilla were excised in the tumor surgery,when the surgery trauma was recovered thoroughly,the 9 patients of facial collapse were repair with casting maxillary prosthesis in 6～8 weeks after the surgery,then made a return visit after three months wearing,so as to observed the following four indicators including the extent of plumpness of face from appearance of these 9 patients,the articulation of the pronunciation,the masticatory efficiency,whether inorrhea and bucking and so on occur when drinking water and swallowing after wearing the maxillary prosthesis,and evaluated whether the prosthesis wearing has more remarkable promotion in comparison to the previous condition.