Abstract: 2.4m wind tunnel is one of the biggest injecter powered transonic wind tunnels in the world. Considering the problem of the specific characteristc of the control systems of nonlinear, time-varying, large time delay, intensive interaction between the inputs and the requirements of the control systems that must be of quick response and high stable state accuracy, the advanced DCS hardware system and intelligent control strategies for the wind tunnel control system are used. Actual test results are provided to illustrate the control precision of P0 and Mach number excels 0. 3% and 0. 002 respectively,and the feasibility of the control strategies.