Abstract: Wall shear stress is a direct parameter used to accurately study the frictional resistance of fluid flow over a solid wall and is a key factor in evaluating the performance of aircraft equipment and surface friction distribution. Accurate measurement of wall shear stress is crucial for determining the viscous resistance of aircraft and optimizing their structure. This study focuses on verifying a wall shear stress measurement method based on double-layer hot film technology. A long circular pipeline air flow test platform was designed to verify the accuracy of the method in measuring wall shear stress. Additionally, the stability and repeatability of the double-layer hot film sensor for measuring wall shear stress under different temperature differences were evaluated. At ΔT = 30℃, 40℃, 50℃, and 60℃, the maximum measured wall shear stress was 1.27 Pa. The relative synthetic uncertainty of the wall shear stress measurement was 0.50%, and the relative error was less than 4%. The results demonstrate the reliability of the method and its applicability for the precise measurement of wall shear stress.