The work aims to solve the problem of irregular bag drop and fuzzy bag drop point affecting the accuracy of palletising position during palletising of bagged finished grain containers. ANSYS/LS-DYNA was adopted to simulate and analyse the bagging process of bagged grains and set up a bagged grain bagging test platform for testing. A high-speed camera was employed to observe the bagging process of bagged grains, analyse the distribution of stress and bagging mechanism of bagged grains, conveying speed and bagging height in the process of bagging, and determine the region where the maximum equivalent force occurred, as well as the optimal combination of bagging parameters. Then, the accuracy of the simulation was verified. According to the simulation results, the horizontal displacement of the bagged grains was relatively less when it fell 600 mm from the ground, and the smaller the conveying speed was, the smaller the horizontal displacement of the grains after falling was. When the finished grains fell to the ground, the impact stress was concentrated in the middle of the lower layer. When the stacking and palletising system adopts horizontal transport, the bagged grains can be pushed out of the end of the conveyor belt horizontally when the conveying speed is 0.7~1.0 m/s and the conveying height is 200 mm, and the bagged grains can be turned over and dropped to the ground when the conveying speed is 0.3 m/s and the conveying height is 600 mm, which is the best dropping position, and the average displacement is the smallest in the horizontal direction, meeting the requirements of the end-drop bag work for the automatic loading and unloading equipment of bagged grain container. The finite element model is basically consistent with the actual bag drop position, which is a reference for the analysis of the end bag drop position of automatic loading and unloading equipment for the bagged grain container.