Abstract: Abstract: Wall pressure especially dynamic wall pressure of the single silo is crucial for the silo design. Therefore, it's necessary to obtain static and dynamic wall pressures, as well as their change regularity along the silo wall. In view of this, 2 techniques were mainly used in this study containing experimental method and simulation technique in order to solve the aforementioned problem. Apparently, it is difficult and intractable to study and discuss wall pressures of the silo during discharging. Nevertheless, it is direct and efficient to carry out experiment on this issue, so we carried out this test in Structure Laboratory of Henan University of Technology. In this experiment, the test object was a miniature silo model of organic glass due to its transparency to materials. We could clearly observe flow patterns of materials inside the silo. The silo model was full of standard sand, and sensors were pasted on the internal surface of the silo wall to record test data. The static wall pressure was tested after the silo model was filled up, and the dynamic wall pressure was tested during discharging. In order to obtain accurate experimental results, tests with many times had been done. On the other hand, for mutual authentication, ABAQUS software was employed to simulate the flow of material during discharging. The finite element model (FEM) was two-dimensional (2D) model with a rigid line representing the silo wall and a plane representing the material. In this process, surface-to-surface contact was used, and the silo wall and the material boundary were set to the target and contact element respectively. What was more, adaptive mesh subdivision technology was very important, for time duration of material discharging was directly affected, and it lasted 0.25 s in the process. In addition, some phenomena appeared in Mises stress cloud charts. The larger the Mises stress changed from the silo wall to the hopper wall, the larger the stress area on the hopper wall increased over time. Moreover, in order to verify the experimental and numerical results, theoretical formulae in Chinese code were used to calculate static and dynamic wall pressures, and it was verified that the calculated values were large influenced by the wall pressure coefficient. After that, experimental results, simulation results and theoretical values were also obtained and compared with each other. It was shown that dynamic pressures were bigger than the static ones; the maximum overpressure coefficient reached 1.78 at 0.15 m, the second larger overpressure coefficient reached 1.73 at 0.65 m, and thus the dynamic pressures increased by over 70% compared with the static pressures for the 2 measure points. About the other measure points, the overpressure coefficient was less than 1.45, and the minimum was 0.99. The other comparative results showed that the difference between simulated values and theoretical values of the silo wall pressure was small. To some extent, it was more or less different between experimental values and simulated values due to sensor accuracy and calibration test errors, but the variation tendency of static wall pressure was almost the same; in addition the dynamic pressure was affected larger than the static pressure by the above factors, and therefore the experimental curve was a little irregular, while the simulated curve of it was more smooth. And then, some helpful phenomena appeared through data analysis of measure points, for example, dynamic wall pressure amplitude of each measure point was different, and the maximum was next to the hopper; the higher value was nearly in the middle of the silo wall. Through the above analysis, the proposed simulated and experimental method are also feasible to obtain static and dynamic wall pressures of the silo, and the obtained change regularity of pressures along the silo wall is useful for the silo design and further research.