In order to obtain the type certificate of European Aviation Safety Agency (EASA), it is necessary to change the design and carry out dynamic impact test on the passenger seat of a domestic civil commuter aircraft in the emergency conditions. Based on the interpretation of airworthiness requirements and corresponding standards, the airworthiness demonstration technology of aviation seat dynamic requirements was studied based on dynamic impact test. It mainly included the basic requirements of seat dynamic performance, selecting test configuration and condition, test planning, pass/fail criteria and test results. The results show that the passenger seat meets the dynamic impact requirement of airworthiness regulation. The success of the passenger seat dynamic impact test has laid a good foundation for the aircraft model to obtain the EASA type certificate. This type of aircraft is about to become the first domestic civil aircraft to obtain the European type certificate.