Aiming at the high temperature environment simulation of the heat vibration experiment for exhaust gas processor,the heat vibration experiment control system for exhaust gas processor was studied. The closed-loop control of system temperature and pressure was realized,and the system flow could be adjusted.SIMATIC S7-1200 PLC was taken as the main controller of the control system,based on WinCC7.3 configuration software,the human machine interface was developed,and the software and hardware system of the experiment control system were designed.In terms of software,PID closed-loop control,data storage and human machine interface were designed and implemented according to the technical requirements of heat vibration experiment for the exhaust gas processor.The control system runs smoothly on the heat vibration equipment.The acceptance results indicate that the control system has high control precision,short development cycle and high reliability.The results provide reference for other high temperature experiment system.