This paper covers the designs of Hardware in the Loop Simulation (HILS) testing of minitype turbojet engine digital control regulator

and hardware and software configurations.The HILS tests check up the transient and steady state performances of the engine control system.The tests correct and verify the capability of engine digital control regulator ground start and air start

stopping

automatic accelerating and decelerating

and steady state regulation.Also the tests evaluate the adjusting capability of air start

and flying along the ballistic trajectory.Finally some test results are presented.