Method for sintering anhydrous calcium sulfate biomedical material

The invention relates to a method for sintering an anhydrous calcium sulfate biomedical material, which comprises the following steps of: preparing an anhydrous calcium sulfate material, and adding a sintering aid into the anhydrous calcium sulfate material, so that the sintering aid and the anhydrous calcium sulfate material are mixed fully to form a mixture to be sintered; performing compression molding on the mixture to be sintered; and performing heat treatment on the mixture which is subjected to the compression molding and is to be sintered, so that the mixture to be sintered is sintered to form the anhydrous calcium sulfate biomedical material. The sintering aid contains a first sintering additive and a second sintering additive, wherein the first sintering additive is formed by calcium phosphate, and the second sintering additive is formed by at least one of sodium carbonate, calcium oxide and silicon dioxide. The anhydrous calcium sulfate prepared by the method has excellent sintering capacity and hi