Abstract: The fatigue fracture properties of the aircraft canopy are important for the safety of the aircraft. The stroboscopic method combined with the digital image correlation method is used for the fatigue testing. This method can transform the dynamic process into the static process. This method is used to study the fatigue fracture properties of the laminated directional PMMA. Through analyzing the experimental results the fatigue crack extends along the declining direction in the stress concentration area. The conclusion is uniform with the actual extending direction which can express the experimental results are accurate.