In order to upgrade the mechanical device and control hardware of high angle of attack mechanism, the upper computer control software is designed and compiled based on Labview framework platform. The Socket communication based on TCP/IP protocol is optimized and updated, and the functions of virtual pole setting and model anti-collision identification are added. The developed control software has been successfully applied to the high angle-of-attack test in the 4 m × 3 m low speed wind tunnel of the aerodynamic center. The results show that the software can effectively improve the efficiency of test quality and the safety of equipment operation.