Industrial Internet security public service ensures the healthy development of the industrial Internet, as it is an important approach for outputting the industrial Internet security capability. In this article, we elaborate on the importance of industrial Internet security public service while analyzing its development status, and analyze the challenges faced by the development. The path for improving the basic capabilities of the industrial Internet security public service is proposed from the aspects of basic resource database construction, information sharing and exchange, situation awareness capability, and emergency response mechanism. Subsequently,the path for promoting the innovative development of the industrial Internet security is proposed in terms of the compatibility and adaptation of information technology application innovation, combination and arrangement of security service capabilities, as well as standards and evaluation mechanism. Finally, the development of the industrial Internet security public service is prospected from the aspects of intelligent security service, integrated public service platform, and new generation information technology.