In order to synthetically evaluate the harmonious degree of human and water in urban areas, an evaluation index system was established from 4 aspects of water resources, ecology, society and economy. The evaluation model of urban human-water harmony degree was constructed by using principal component analysis based on Spass software, and the human-water harmony degree of Beijing in 2011-2016 was evaluated and compared with the projection pursuit method. The results show that human-water harmony degree of Beijng demonstrates an overall upward trend. By principal component analysis, this indicates that Beijing should focus on improving the urban human-water harmony from the social and economic aspects, which is consistent with the actual situation in Beijing. The evaluation model is reasonable and feasible.