It is a semiconductor product industry womed out enormous of loss that happened to accident for during in production exist to leakage, fire, explosion, using to variable chemical material of application, treatment, storage. This is presented to that improvement example for study, research, investigation of PSM in semiconductor industry and so processed to follow as theory consideration for PSM in semiconductor industry. This study did the object of research that S company is point to appointment and so give a account of S company PSM contents, searching to conclusion of PSM and consideration of problem and injury prevention for PSM expansion. From now on, PSM of semiconductor-injury is bring up improvement of problem, large-scale -company of semiconductor.