Keeping minor principle stress and medium principle stress fixed and loading in the direction of maximum principle stress are the potential stress path in practical projects,under which several groups with different water contents of true triaxial tests about remolding loess are studied. Results show that the values of initial elastic modulus and principal deviator stress decrease with water content increasing. In certain defined principal deviator stress,lateral deformation increases with water content increasing. The Poisson's ratio can be greater than 0.5 in the direction of minor principle stress and the expansion in the direction of minor principle stress is greater than that in the direction of medium principle stress.