HIPPS(High Integrity Pressure Protection System) is installed in front of major equipment of plant system including offshore plant such as separator to prevent failure and accident caused by abnormal pressure. This is a pressure control safety system that replaced ESDV(Emergency Shutdown Valve) and EVV(Emergency Venting Valve) and guarantees high stability. If abnormal pressure is detected on the sensors installed in front of the major equipment, the system should close the valve within the minimum required time. In this study, the operation of driving part for HIPPS is visualized by simulating to improve understanding for the behavior of HIPPS when abnormal pressure is detected.