Abstract:As a high-tech service industry that serves the development of patent, patent agency service is an important link to transform innovation achievements into patent rights, and an important guarantee to safeguard the rights and interests of innovation subjects and improve patent quality. This paper reviews the research on patent agency service by means of bibliometrics, summary and induction, and clarifies the research status and hot spots in this field. It is found that the research on patent agency service mainly focuses on the concept of patent agency service and its influence on the patent quality and patent technology transfer. On this basis, the deficiencies of current research and the future research direction are pointed out. This article proposes to strengthen the research on the in-depth impact mechanism of patent agency service on patent quality and patent technology transfer, and to carry out evaluation system research on the quality of patent agency service. In order to provide theoretical support for the development of various services of patent agencies in practice and promote the improvement of service quality of patent agencies and the benign development of patent agency service industry.