Aiming at the linear drift problem existing in the traditional tilt compensation process, the Ⅰ-Ⅱ observation position and the average value of the Ⅱ-Ⅰ observation position inclination correction were used for the inclination compensation. In order to reduce the influence of turntable rotation error on the tilt component of zenith camera rotation axis, the effect of asymmetric rotation error on tilt compensation was deduced. The influence of astronomical coordinate errors of observation stations on the calibration of state parameters of inclinometer was analyzed, also. The results show that the latitude and longitude error can be increased from 0.337″,0.381″ to 0.265″,0.216″ by using the improved tilt compensation method, respectively. The asymmetry error of turntable can be controlled within 1′, so that the influence of the asymmetry error of turntable on the tilt compensation of the rotating axis of the camera can be controlled within 0.002″. When the astronomical coordinate error of the measuring station is equal to the positioning accuracy of the instrument itself, the influence of the astronomical coordinate error of the measuring station on the tilt compensation of the rotating axis is small, that is, the influence on the astronomical longitude is within 0.007″ and the influence on the astronomical latitude is within 0.008″. This study is helpful to the calibration of inclinometer parameters and the simultaneous determination of zenith camera location.