An optimal logarithm spiral microphone phrase array was designed by adopting the simulated annealing optimal method,and data processing software was developed based on the Beam Forming theory. The wind tunnel microphone phrase array test technique was employed to study the aerodynamic noise of SCCH high lift system. The far-field detecting and measurement of the noise source were carried out and all test data were processed by using the software. The results show that the location and the pressure level of sound sources for slats varied with the change of inspecting frequency; while the noise source for flap side-edge is a broadband one, and its intensity distribution has differences with different frequencies. Meanwhile, it is found that the slat supporting frames on SCCH test model have significant effects on aerodynamic noise emission. The mapping of noise source for slats/ flaps under several test conditions are also presented and analyzed.