In order to study the bearing capacity of the aluminum honeycomb sandwich panel, outdoor test road was built, rigid bearing plate with 30 centimeter in diameter was used to simulate the tire load of aircraft. Displacement sensors and strain gauges were placed on the surface of the sandwich panel, vertical deformation and surface strain were measured with the foundation of different resilient and unevenness. Experiment results show that the rise of foundation modulus can improve the stress condition, reduce the vertical deformation. The void can produce large deformation on the bottom of the panel, reduce its bearing capacity.