A metal material for a bioimplant which is excellent in biointegration according to the present invention has a surface treated by sandblasting, andthe surface has an average roughness Ra of 1 to 2.5 µm and is made free from residual abrasive used in the sandblasting treatment by washing with water after the sandblasting treatment and the composition of the metal material surface does not change before and after the sandblasting treatment.According to the present invention, it is possible to provide a bioimplant metal material from which an abrasive used for sandblasting treatment can be easily removed by washing with water and which is excellent in biointegration to a bone or the like since having a good roughened surface and a production method thereof.
