In order to solve the problem that the current equipment purchase price does not consider the difference of technology content, a unified pricing model is adopted. Use AHP to analyze innovation degree in equipment purchase. Establish the evaluation index system and criterion of technical innovation degree of equipment purchase, calculate the weight of evaluation index of technical innovation degree of equipment purchase, use Delphi method to invite experts to score, and take certain type helicopter purchase as an example to verify the evaluation index system constructed. The results show that the method is consistent with the expert qualitative results.