In view of the complex conditions of soil stickiness and compaction,large fluctuations of soil water content,large retention of previous rice straw,and the production requirements of furrow for rapeseed planting in the middle and lower reaches of the Yangtze River,a furrow plough with boot shape and sharp angle was developed to mechanically prepare ditch for rapeseed seedbed. A smooth parabola was selected as the sliding edge curve,and a threesided wedge model of the imitating bootshaped acuteangled furrowing plough was established. Simultaneously,the dynamic analyses of the interaction between the plough body and the soil were carried out. Results showed that the sliding angle of the sliding cutting edge curve ranged from 23° to 67°,the plow body entry angle was 30°,the plow tip opening angle was 60°,the length of the retaining plate was 400 mm,and the wing angle varied from 40° to 79.2°. Results of field trials showed that the shoeshaped acuteangle ditching plow can produce trapezoidal grooves with a width and depth of 200400 mm and 175250 mm,respectively. The stability of the groove width and depth was 90.6% and 92.4%,respectively. After the unit operation,the soil adhesion capacity of plough was 238 g on average and no grass choked the plough,indicating that the unit has good feasibility. Fin inclination angle,furrow depth,and operating speed significantly affected working quality of ditching (such as soil return quantity) in the increasing order of fin inclination angle,furrow depth,and operating speed. Furthermore,an orthogonal experiment with DesignExpert software was designed to obtain the optimal combination of parameters. The optimized parameters were wing angle of 46.22°,ditching depth of 183.06 mm,and operating speed of 0.6 m/s. Under this condition,soil return quantity was 2.34%. In order to verify the feasibility of the optimization,a field experiment with a wing angle of 46°,a ditching depth of 183 mm,and operating speed of 0.6 m/s was carried out in the demonstration base of wholeprocess mechanized production of ricerapeseed rotation in Jianli County,Jingzhou City,Hubei Province. 3.28% of soil return quantity and 0.94% of the difference of the test results were observed. It is indicated that a furrow plough designed with boot shape and sharp angle has a better ditching effect,which meets the agronomic requirements of rapeseed planting. It will provide a reference for preparing canola ditches in the middle and lower reaches of the Yangtze River. This study only carried out the operation quality test of the bootleg sharp angle furrow plough under the same working condition. The power consumption of the bootleg sharp angle furrow plough and the applicability of the soil environment in different regions need to be further studied.