Jilin "Auspicious Code" is a personal two-dimensional code based on the real-name data of the unified identity authentication of Jishi Office, combined with the comparison and verification of epidemic prevention big data information. According to the different personal health indexes detected by the system, auspicious codes are divided into four colors: green code, yellow code, orange code and red code. In order to further standardize the management of "auspicious code" scanning in the whole province and promote the safe and orderly flow of special groups such as the elderly and children, Jilin Provincial Administration of Government Services and Digital Construction upgraded the "auspicious code".