Abstract: The harvesting time of corn stalks is tight, labor intensive, and time-consuming. If it is not harvested in time in rainy days, it is prone to mildew in the ground ¹. At present, the collection and cleaning of corn stalks are mainly done by rake. However, due to the differences in pasture species and planting methods, the introduction of foreign rake has adaptability problems. The corn stalks collected by the rake have large soil content and high leakage rate. Aiming at this problem, a multi-parameter adjustable finger tray rake experiment platform was designed. On the basis of satisfying the overall structure and working principle of the rake, adjust its finger plate rake angle, the number of finger plate spring teeth, the rake travel speed and other parameters, and explore the influence of the structure parameters of the rake on the quality of the rake. In order to determine the density and leakage rate of the rake under different structural parameters of the device, Adams software was used to simulate the motion of the rake. The simulation results show that the faster the machine travels, the smaller the width of the straw; the greater the rake angle, the greater the width of the straw; in order to verify the reliability of the simulation, a field test of the finger-disk rake was carried out, and the experimental results and simulation results It is consistent and provides a theoretical basis for the design of the finger tray rake.