OBJECTIVE To assess the method and reliability of the platysma myocutaneous flap with posterior based pedicle for defects in the region of parotid gland and masseter muscle.METHODS The clinical data of 6 patients who were reconstructed with platysma myocutaneous flap with posterior based pedicle for defects in the region of parotid gland and masseter muscle from 2006 to2007 were studied. The blood supply and design of the flap,the keys in operation and the outcome after operation were also discussed.RESULTS All the patients were followed up from 2 months to one year.The color of the platysma myocutaneous flap was matched with the facial skin.All the operation results were satisfied. CONCLUSION Platysma myocutaneous flap has abundant blood supply.The operation is easy and reliable.It is suitable for reconstruction of the defects in parotid gland and masseter muscle region.