Abstract: In this paper, monthly percentage of sunshine from 61 meteorological stations (1993-2016) and hourly global solar radiation from six solar radiation observation stations were used to calculate and compare the level, optimal bevel and bevel tracking of global solar radiation for each station. This was completed using solar radiation climatological calculations Klein anisotropic scattering model and Hay anisotropic scattering model. The annual average number of clear days were derived from the daily average total cloud cover from 1993-2016 to determine if they could explain spatial variation in total solar radiation between the stations in Liaoning. We found that the optimal tilt angle lay in the range of 36°~41°, with the minimum angle in Jinzhou and maximum angle in Kangping, Changtu, Faku and Xifeng, and the optimal bevel solar radiation in west, central and north Liaoning were greater than that of the other areas, with the greatest solar radiation in north Chaoyang and west Fuxin. The results also showed the annual tracking bevel global solar radiation in the central, west and north Liaoning were greater, and the increase of tracking optimal bevel solar radiation could reach 700-2300 MJ/m² (13.0%-41.0%), and showed significant regional distribution. Lastly, we showed the increase of the total solar radiation was greater in west Liaoning, but the largest increase of percentage is in the coastal regions (> 37%, and even > 39% in south Dalian). Thus, the number of clear days or days with cloud cover could be the main reason for the spatial variation of total solar radiation in Liaoning.