Abstract:During the 13th Five Year Plan period, the productivity service system of Guangdong Province developed rapidly and its scale grew year by year. The service content gradually changed from the traditional intermediary service to the whole chain innovation service. The development trend continued to change to specialization, networking, integration and internationalization, and gradually became an important support for the construction of the international science and technology innovation center of Guangdong-Hong Kong-Macao Greater Bay Area and the strong province of Guangdong science and technology innovation. In order to adapt to the new situation of the development of productivity service system in Guangdong Province and further improve the technological innovation service ability of productivity center system, it is necessary to establish a systematic and comprehensive evaluation system of productivity technological innovation service ability, objectively and scientifically promote the innovation and development of productivity system as an important basis for its dynamic management and policy support. Therefore, this paper uses the TOPSIS comprehensive evaluation method based on entropy weight method to build the evaluation model of scientific and technological innovation service capacity of productivity service system in Guangdong Province, and verifies the rationality of the evaluation model and determines the key influencing factors through the grey correlation analysis method. Through empirical research, it is found that the service capacity of scientific and technological innovation of productivity service system in Guangdong Province is on the rise from 2010 to 2018; the development of productivity promotion centers in various regions is unbalanced, and the Pearl River Delta region is far ahead of the East and northwest of Guangdong; the influence of enterprise service capacity, human resources and scientific and technological innovation resources on the service capacity of scientific and technological innovation of productivity service system is relatively significant.