A pointing error of level mounting optoelectronic telescope was modeled and corrected. According to the architecture of level mounting telescope,the horizontal coordinate system and the sighting coordinate system were built,then the conversion formulas of horizontal coordinates,horizon coordinate system and sighting coordinate system were derived. Considering triaxial error and encoder error of the telescope,etc.,the compensation model of static pointing error of level mounting telescope was established. Using the measured star coordinate data,spherical harmonics model,basic physical parameter model and the proposed model were compared and verified. The experimental results show that total pointing error was reduced from 150.96″ to 4.12″ for a certain level mounting telescope after correcting with the proposed model,which meets the accuracy request,and it can widely use in the field of scientific research and engineering.