Although transcranial magnetic stimulation has been widely used in the treatment of obsessive-compulsive disorder， how to choose the best stimulation target， frequency and other treatment parameters still need to be further study. Starting from the three parameters including coil， stimulation frequency and stimulation target， this paper summarizes the effect of transcranial magnetic stimulation in the treatment of obsessive-compulsive disorder. It is considered that more randomized controlled experiments are still needed to confirm the efficacy and tolerability of transcranial magnetic stimulation in the treatment of obsessive-compulsive disorder. In the future， we should focus on the selection and optimization of individualized stimulus programs.