The H2/O2 rocket engine test system has been designed based on general test requirements of small 1000N H2/O2 rocket engine.The design of gas feed system was introduced.The choice of the mass velocity and pipe diameter was discussed particularly.The comparison type thrust-measuring device and the computer measurement & control system have been designed.The scaling and confirmatory tests have been carried out.The test system can be used for cold flow tests and firing tests of small H2/O2 rocket engine under different work conditions

and can also be supervised and controlled remotely by computer with high accuracy.