Simulation method and system of carrier rocket attitude control system

The invention discloses a carrier rocket attitude control system simulation method and system, and the method specifically comprises the following steps: an upper computer compiles a simulation model, generates an executable program, and downloads the executable program to a simulation computer; the upper computer runs the simulation model and selects a simulation mode; the industrial personal computer simulates a flight test process, uploads flight control software to a flight control combination and starts the flight control software; the upper computer controls the simulation computer to send ignition and take-off instruction signals to the flight control combination, and the simulation computer obtains attitude angle and attitude angular velocity measurement information through calculation and sends the attitude angle and attitude angular velocity measurement information to the flight control combination; and the flight control combination works after receiving the ignition and take-off instruction signal