Abstract: In order to improve the working efficiency and the quality of the ridge in Chongqing tobacco area, investigated and analyzed the existing ridging tool market retention situation and tool using effect, contrasted and analyzed The advantages and disadvantages of the mainstream tools and reshapers, seven groups of schemes with different combinations of ridging tools and reshapers were selected for field comparison experiment. According to the experimental results, proposed a new ridging cutter. The ridge height of the improved ridge cutter meets the requirements of agronomy, the working efficiency is increased by about 10%, and the flatness of ridge surface, the fullness and consistency of ridge body are improved to a certain extent compared with before the improvement.