Abstract: To further reduce agricultural labor intensity and promote the intelligent development of field crop sowing, a front and rear dual-drive and dual-steering maize sowing robot chassis based on wireless remote control technology was designed, which can be equipped with maize sowing components to achieve unmanned maize sowing. According to the requirements of maize sowing in maize stubble fields, the overall structure and layout of the chassis were determined, and key components such as the frame, drive steering system, arch leveling mechanism and control system were designed. Based on theoretical calculation results, two 2.2 kW AC asynchronous motors were used to provide driving force for the chassis, a column-type electric power steering was used to achieve front and rear wheel steering, and a wire-controlled brake was used to achieve remote braking. The vehicle control system was built with VCU (vehicle control unit) as the core controller. Radio signals were transmitted between the remote control handle and VCU, and CAN bus communication was adopted between VCU and other subsystems. The finite element method was used to perform static and modal analysis on the frame to verify the rationality of the frame structure design and check the material strength. Under constant speed and full load bending conditions, the maximum equivalent stress of the frame was 98.2 MPa, and the maximum deformation was 1.84 mm. Under constant speed and full load torsion conditions, the maximum equivalent stress of the frame was 106.65 MPa, and the maximum deformation was 2.05 mm. The stress at each location of the frame is less than the allowable stress of the material. The constrained modal analysis of the frame showed that the first-order natural frequency of the frame was 34.442 Hz and the maximum deformation was 6.4159 mm. while the vibration frequency caused by terrain undulations is generally less than 20 Hz, and the vibration frequency caused by ditching is generally less than 10 Hz. Therefore, the influence of resonance on the working performance of the sowing components can be effectively avoided. The finite element simulation results showed that the frame structure was reasonably designed and the structural strength can meet the requirements of maize sowing operations. In order to reduce the turning radius and improve the operation efficiency, the chassis adopted the synchronous reverse steering of the front and rear wheels. Theoretical analysis results showed that when the front and rear wheels rotate in opposite directions and the wheels on the same side deflect by the same angle, the turning radius of the chassis is smallest. The turning radius of the inner wheel is 3.44 m, and the turning radius of the outer wheel is 4.65 m. When the chassis is traveling on a slope, force analysis showed that the maximum overturning angles for the uphill and downhill slopes are 69° and 67.7° respectively, and the lateral overturning angle and the lateral slip angle are 58.3° and 33.8°, respectively. In the prototype performance test, the chassis can safely and stably pass through 8°～15° slopes and overcome 6～15 cm obstacles, indicating that the chassis has good climbing stability and obstacle crossing performance, which can ensure the maize planting under different complex surface conditions. The chassis has good driving performance, with maximum driving speeds of 1.46 m/s on corn stubble fields, and an average straight-line deviation rate of 4.42%. Under different test conditions, the qualified rate of sowing depth of the chassis of the maize sowing robot was greater than 86%. With the increase of the operating speed, the qualified rate of sowing depth decreased slightly. Under different speeds and soil compaction conditions, the standard deviation and coefficient of variation of sowing depth changed little, indicating that the chassis has good stability of sowing depth. The average qualified seed spacing was 24.32 cm, the coefficient of variation of seed spacing was 5.1%, and there was no re-seeding or missed sowing, indicating that field vibration excitation would not affect the working performance of the seed meter. The average row spacing was 69.3 cm, the standard deviation of row spacing was 2.27 cm, and the maximum deviation was no more than 4 cm, indicating that the chassis can achieve uniform row spacing.