Different types of the solar assisted heat pumps were evaluated comprehensively, using analytic hierarchy process in this paper. The evaluating criteria were determined, and an analytic hierarchical structure model was created, and the weight values of all criteria were given with a computer program. Combined with the grades of all criteria, comprehensive grades of four types of solar assisted heat pumps were given, using a way of the linearity weight. Then the evaluation results were given comprehensively and objectively.