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Aiming at the problem of unstable tillage depth and unsuitable operation during the furrowing process of the sugarcane double-bud cane section transverse planter developed in the previous stage in hilly areas, combining with the working characteristics of the transverse planter, a tillage depth monitoring system for the sugarcane transverse planter was designed, which consisted of a laser range sensor, a pressure sensor and a single-chip microcomputer control system, and the relationship between the tillage depth of the rear plough and the load pressure of the cylinder was studied, so as to realize automatic control of the tillage depth by real-time monitoring of the tractor lifting hydraulic by real-time monitoring the tractor lifting hydraulic cylinder load pressure, tillage depth changes, and compared with the set tillage depth threshold, the automatic control of tillage depth was achieved through the control system. Firstly, through theoretical analysis and Simulink simulation modelling, the motion simulation analysis of the displacement relationship between the upper tie-bar and the lower tie-bar was carried out. The three-point suspension load mode of the sugarcane transverse planter in the tillageing process was studied, and the theoretical model of the relationship between the displacement of the hydraulic lifting cylinder of the tractor and the tillage depth of the rear plough was established. Secondly, a microcontroller-based hydraulic control system was designed to build a test platform for the tillage depth monitoring system of the double-bud cane section transverse planter. Finally, the performance verification test and multi-factor orthogonal test were carried out on the test platform to explore the main influencing factors of the tillage depth stability coefficient and the laws affecting the tillage depth control;the test data showed that the system’s regulation response speed was less than 1s, and the coefficients of the tillage depth stability for different tillage depths were all greater than 90%, which was in the range of the setup, and the test results basically matched with the setup values, which verified that the tillage depth control procedure was reliability. Through the multi-factor orthogonal test, it can be seen in the interactive factors of hydraulic speed valve opening, set the value of tillage depth would have a significant impact on the stability coefficient of tillage depth, according to the results of the test when the speed valve opening was 0.56, the soil moisture content of 27.4%, set the tillage depth of 29.6cm, the highest coefficient of stability of the tillage depth was 95.87%.