By scanning the health code, play the role of big data. Relying on the national comprehensive government service platform, we will comprehensively promote the implementation of mutual recognition of "health code" and "one code" in various places, and share the information of nucleic acid and serum antibody detection results and key personnel in the "health code" database in time to promote the safe and orderly flow of personnel. Do a good job in the popularization and application of the entry version of the national comprehensive government service platform "epidemic prevention health information code" and strengthen the closed-loop management of the entry personnel.