Abstract: Obtaining disaster response feedback from the epicenter and surrounding areas in the shortest possible time is an important part of post-earthquake emergency work and the most important aspect of emergency decision-making. Work practice has shown that, compared to passively waiting for personnel to report, actively calling the affected areas is more conducive to quickly obtaining disaster information, thereby improving the efficiency of post-earthquake emergency response. Based on the advantage that government duty telephones have dedicated personnel on duty, this paper collects the data of government duty telephones and police station duty telephones in towns and streets of 13 cities in Jiangsu Province. Combined with the characteristics of light weight and easy operation of WeChat mini program, we designed and implemented a Jiangsu earthquake emergency contact directory. This program realizes real-time interactive inquiry of address book information, completes the function of quickly, accurately, and conveniently dialing calls, and also ensures the connection rate of the phone to a certain extent. At the same time, through the daily maintenance of the database, the instant availability of data is guaranteed. Compared with the traditional manual query method, it is more intuitive and efficient, and effectively reduces the time cost and process error in the post-earthquake emergency response process.