Abstract: In order to study the effects of "ordinary flat farming" and "wide ridge spacing ridge farming and ridge harvest" on the main agronomic and yield characters of rapeseed, and to provide technical reference for exploring the planting mode of mechanized production of rapeseed. Taking Qingyou No.3 provided by the Rice Research Institute of Chongqing Academy of Agricultural Sciences as the material, the main agronomic and yield characters of rapeseed mechanized production under the two planting modes of "ordinary flat farming" and "wide ridge spacing ridge farming and ridge harvest" were measured, and the economic benefits of the two planting modes were compared. The results showed that although the number of effective plants per unit area of "ordinary flat cropping" mode was more than that of "wide ridge spacing ridge harvesting", the yield characters of rapeseed planted by "wide ridge spacing ridge harvesting" mode were better, the loss and loss rate were lower, the economic benefit was higher, and it was more suitable for mechanized harvesting. The main agronomic shapes of the two planting modes have little difference, but there are obvious differences in yield per unit area and economic benefits. Selecting the appropriate planting mode for mechanized production can obtain high yield and high efficiency.