The invention relates to a solid-liquid power air vehicle ground test and launch control system of a 422 bus. The system comprises a ground integrated console, an adjusting control machine box, a flying control computer and a telemetering/telecontrol system. A main control computer of the ground integrated console uses a human-computer interaction interface, a CP-134U-I/DB9M board card of MOXA is used as a 422 node, orders are received and sent, and state information is displayed. The adjusting control machine box carries out ground and missile-borne power supply and distribution, signal forwarding, signal state monitoring and testing. The flying control computer receives orders sent by the main control computer and feeds the state information of an air vehicle back to the ground. According to the system, ground testing of the whole system, missile-borne system self detecting, result back transmitting, flying control data stapling, important parameter real-time detecting and system information back reading can be completed, and comprehensive monitoring of bus information, data real-time storage and displaying and safe protecting integration design are achieved.