ADS-B is the abbreviation of broadcast automatic dependent surveillance, which is an emerging civil aviation operation monitoring technology. ADS-B OUT is the basic working mode of ADS-B. Its working principle is obtaining aircraft position information based on the Global Navigation Satellite Positioning System (GNSS), the aircraft flight management system automatically uses the ADS-B transmitter to send critical information such as the aircraft’s position, speed, and flightattitude to the relevant ground station or ground data center through the groundair data link by broadcasting. The function of ADS-B OUT mode is realized by airborne ADS-B equipment and ADS-B ground equipment, the airborne ADS-B equipment is set as an airborne monitoring equipment, which must meet the requirements of relevant airworthiness clauses and specifications. This paper introduces the technology of ADS-B, and describes the background, working principle and advantages of ADS-B. The airworthiness clauses and specifications related to airborne ADS-B equipment are sorted out and summarized. The main means of compliance demonstration were researched and collated. The test items and issues that should be focused on in the test were summarized. The development of airborne ADS-B equipment and related airworthiness verification methods were proposed.