Automatic agricultural machine based on Beidou satellite navigation and application method thereof

The invention discloses an automatic agricultural machine based on Beidou satellite navigation. Moving and operating of the automatic agricultural machine are controlled by a microprocessor; at least one automatic rice transplanter is arranged at the tail of a vehicle body, and the automatic rice transplanters are composed of rice transplanting discs, mechanical arms, rice seedling boxes and V-shaped wheels; the mechanical arms are arranged on the rice seedling boxes and controlled by the microprocessor to move and grab; the rice seedling boxes are arranged on fixing shafts on the V-shaped wheels through supports; rice-seedling through holes are formed in the rice transplanting discs, the rice transplanting discs can rotate around a rice-seedling conveying pipe below the rice transplanting discs, and the rice-seedling through holes can be communicated with the rice-seedling conveying pipe through rotating of the rice transplanting discs; a rice transplanting mechanism is arranged below the rice-seedling conve