To solve the problem that the parsing process of the traditional ADS-B message software is complex and difficult to understand, a simple and easy-to-implement analytical method is proposed. First of all, the hexadecimal message data received by the network port is converted into the corresponding 01 character string. Secondly, according to the structure of ADS-B message, the program of CPR algorithm is implemented. Finally, the ADS-B message data is sent in real time via the SBS-3 device network port, and the Qt platform is used to receive and parse the ADS-B message data. The results of actual tests and the comparison with the traditional method show that: 1) The method of the study and the designed parsing procedure can be used to parse the ADS-B message data in real time;and 2) The result is the same as that provided by the SBS-3 device. The experiment proves the effectiveness and feasibility of the proposed method.