The invention relates to a sounding rocket flight control system with an attitude adjustment function, which comprises a main control module, a power supply voltage stabilization module, an ignition module, an attitude adjustment module, a data transmitting and receiving module, an insurance module and a lower computer, wherein the power supply voltage stabilization module, the ignition module, the attitude adjustment module and the data transmitting and receiving module are connected with the main control module, and the lower computer is connected with the data transmitting and receiving module. The sounding rocket flight control system is stable, reliable, low in development cost and high in function expansibility. Compared with the existing small sounding rocket electronic control system, the sounding rocket flight control system adds an attitude adjustment function, can adjust the flight trajectory automatically/manually or compensate disturbance caused by the external environmentthrough the data transmitting and receiving module and the lower computer in the flying process, and is high in adaptability. In addition, 5V voltage is provided for the system through the power supply voltage stabilization module, the safe operation of the system is guaranteed through the insurance module, and the system can carry out response adjustment according to the amplitude of the shakingX and Y axes through two external steering engines.