INTRODUCrIONrnMany basic and clinical experiments showed that drugs of statinsmight stimulate proliferation and differentiation of osteoblast andmight be used as an effective drug to treat osteoporosis. We usedsimvastatin (one kind of drugs of statins) to treat cases with dia-betic osteoporosis for 3 months, observed and compared each indexbefore and after treatment in order to observe its effects on boneformation.