To research the jet flow influence on the missile and launch equipment of the container launching process,the computational fluid dynamic was used,and the jet flowfield and the missile motion were coupling computed.The zone moving and dynamic laying method was used to simulate the missile motion,and the species frozen model was used to simulate the flowfield.The thermal and impact load of the missile launching process were obtained,and contrasted with the experimental data.The results show that,the missile pressure was negative when the missile was in the container,and the pressure increased to an atmospheric pressure when the monitor surface moved out of the container.The missile bottom suffered a temperature apex of 775 K,and the missile surface temperature retained 300 K during the missile motion process.The temperature of the container increased when the missile was in the container and decreased when the missile was out of the container.The temperature increased before the supercritical location and then decreased along with the missile moves far away from the container.The pressure was negative when the missile was in the container,and achieved minimum when the nozzle moved to the monitor,and increased later.The container pressure decreased to the trough when the supercritical location and the pressure increased to an atmospheric pressure when the monitor surface moved out of the container.