In this study, a combination of Analytic Hierarchy Process (AHP) subjective weighting and Entropy Weight Method (EWM) objective weighting is used. Using simple and easy index data, a light pollution level evaluation model that can be widely used in various places is established. The light pollution is divided into four grades: high pollution, moderate pollution, low pollution, and extremely low pollution according to the score from high to low. Then the evaluation model is applied to four regions with significantly different natural and human environments, namely Tibet Qiangtang National Nature Reserve, Malyang Township, suburbs of Guangzhou City and urban areas of Guangzhou. The light pollution scores of the four regions obtained by the model are 8.83,36.67,64.58 and 83.03, respectively. The model results are consistent with the actual situation.