Abstract: By using of GEODYNⅡ from GSFC/NASA/USA and newly lunar gravity model LP165P from JPL/NASA/USA,the effects on the orbit revolutionary from different models by truncation to some degree and order are simulated and computed,the orbit revolutionary and analysis of orbital lifetime under different height,inclination and ellipticity with same lunar gravity model are computed.The results show that high inclination circular high orbit(150 km or 200 km) has better performance,with its orbit lasting more than one year without(alignment,) and its orbit can be computed with gravity model truncated in degree and order 100 without losing its accuracy.