Artificial bone includes synthetic bone material and allogeneic bone, and is mainly used for the repair treatment of bone defects caused by bone tumors, osteonecrosis, severe open fractures and other diseases. The artificial bone can be used to fill the bone defect area during surgery, and if there is no infection or rejection after the artificial bone is implanted, it can be used completely for life without the problem of time limit of use, and there is absolutely no need to replace it again. This is because the artificial bone will gradually ossify after entering the body and fuse with the normal bone tissue to become normal bone tissue, so the artificial bone does not have the problem of service life. In addition, if it is an artificial femoral head or an artificial hip joint, its service life is about 15-20 years.