本文对单伺服阀控制的驱动风洞尾撑系统偏航角的串联双非对称液压缸系统进行了试验研究，对系统的静态性能和动态性能进行了测试。试验证明系统的精度满足设计要求并具有一定的动态性能，从而表明采用单阀控制串联双非对称液压缸是可行的，理论分析是正确的。 In this paper, a series of double asymmetric hydraulic cylinder system driven by a single servo valve to drive the wind tunnel tailrace system yaw angle was tested and the static and dynamic performances of the system were tested. The experiment proves that the accuracy of the system meets the design requirements and has a certain dynamic performance, which shows that it is feasible to use a single valve to control the tandem double asymmetric hydraulic cylinder. The theoretical analysis is correct.