The device is designed based on the Volkswagen Passet 1.8T electronically-controlled gasoline engine and automatic transmission to simulate engine startup, speedup, slowdown and other actions and to illustrate the position, start up in neutral, drive shift and reverse gear and conduct stall tests, so as to illustrate the structures and working principles of electronically-controlled gasoline engines and automatic transmission. The device applies to automobile engine, automatic transmission and maintenance training courses of secondary and senior vocational schools, ordinary education and training institutions.