The industrial Internet sign resolution system is an information infrastructure to realize the opening, sharing and co-management of industrial information. As an industry platform, the secondary node of sign resolution connects the national top node of sign resolution upward and the enterprise sign node and application system downward, which is an important starting point to promote the construction of sign resolution system, application development and industrial ecology construction. This paper follows the industrial Internet general standard industry-level coding rules design scheme, compatible with existing enterprises have built coding systems and application systems, guide and constrain the manufacturing enterprises and power grid, power generation and other enterprises of the unity of objectives and technical standardization.