Abstract: This paper mainly introduced the indoor test of single walking wheel and the on-site tractive test of the walking wheel tractor in paddy field. The test results reveal that this kind of walking wheel has significant merits on reducing the rolling resistance and enlarging the driving force when it runs on soft ground. As a consequence, the motion efficiency of the single walking wheel is up to 50%～52%, and the tractive efficiency of the walking wheel tractor is higher than 40%.