Abstract: It is important to research the relationship on the vehicle-terramechanics in lunar surface circumstances for the lunar rover to work normally. Based on the indices of the traction performance, the comparative indoor test were made in simulated lunar soil for different configuration wheels. The test results show that, the drag bar pull and efficiency coefficient is increasing with the wheel width and diameter. The draw bar pull increased with the rug height, but the efficiency coefficient reduces when the slip radio is bigger than 20 %. The draw bar pull and efficiency coefficient will reduce with the rug distribution increases when the rug distribution is more than 20 %.