Abstract:The evaluation of patent quality is the core problem in the process of the decision-making of investment and financing, the transfer of technical property rights and the evaluation of scientific research results by the government or enterprise. It is now gaining more and more attention in the theoretical and practical circles. By investigating and combing the existing evaluation index system, evaluation model and the meaning of patent quality at home and abroad, it decides to construct the patent quality evaluation index system from the three perspectives of technology, law and economy. Then, in view of the shortage of the existing evaluation methods, this paper proposes a comprehensive evaluation model, that is, using intuition fuzzy analytic hierarchy process to determine index weight and fuzzy evaluation method to evaluate patent quality. Using an example to prove the feasibility and effectiveness of the method. It aims to provide a new idea that is more scientific and practical for the evaluation of patent quality.