The work aims to study the stress status and structural weakness of the skirt type and saddle type tank containers in the case of long-side dropping. Based on the finite element software, the two types of tank containers were simulated and analyzed. In addition, the two structural forms of tank container specimens were produced for drop test at 2.8 m height. The results of simulation and test analysis were comparatively analyzed. The yield deformation of the end beam occurred, and the junction structure of tank and frame was damaged because of the large stress borne. The experimental results are in accordance with the simulation results, which provides theoretical basis for improving the design of tank containers.