Abstract:Intellectual property has a role in shaping and leading the business environment, and the scientific establishment of a business environment evaluation system is of positive significance to the construction of a business environment. This paper constructs an evaluation system from the whole chain of intellectual property creation, application, protection, management and service, adopts TOPSIS model based on entropy weight improvement to measure the evaluation of the business environment in the field of intellectual property in Beijing, Tianjin, Shanghai and Chongqing, and makes a horizontal comparison. The results show that the overall development level of the business environment in the field of intellectual property in the four municipalities is good, but the differences among municipalities are large. Then increase the R D investment of specialized and special new enterprises to promote the ability of independent innovation; Improve the efficiency of intellectual property transfer and transformation, and release the new potential of intellectual property application; Strengthen the rapid and coordinated protection of intellectual property rights, and strengthen the protection of intellectual property rights in the whole chain; To build a concentration area for high-level intellectual property professionals, and improve the level of intellectual property services, the optimization path of the business environment in the intellectual property field is proposed.