Abstract Based on precise leveling observation data, the vertical motion velocity field of western Sichuan-Yunnan province is obtained using vertical velocity at GNSS point as an a priori value to constrain adjustment and vertical velocity of GNSS continuous station less than 10 km away from level line to inspect. Residual statistical analysis at GNSS test point and benchmark suggest that vertical velocity precision at the benchmark is superior to 0.89 mm/a and error distribution is relatively uniform. The vertical motion velocity field of the Sichuan-Yunnan region indicates that western Sichuan province is in the stage of rapid differential uplift, wherein the uplifting rate in Gongga mountain region located to the southeast of Xianshui river is the fastest (5~6 mm/a), that vertical motion in Sichuan basin is not obvious, wherein the rate is between 0~1 mm/a,and that sinking occurred in southwest Yunnan at the rate of 0~2 mm/a, which is consistent with the observations by GNSS. In addition,the tension characteristics of major faults inwestern Sichuan-Yunan province are analyzed through level velocity profile.