Abstract: The study used physiological saline as the simulated body fluid in the simulation experiment of the magnetic bio-ceramic in vitro. The bending strength and saturation magnetic moment of the material and the corrosion liguid have been tested and studied after corrosion in order to investigate the behavioral variation of the material. The mechanism and controlling factors of the biodegradation have been approached according to the results of the simulation and animal experiments.

Key words: magnetism, bio－ceramic, biodegradation mechanism