Crop transplanting machinery is now very common in the process of crop planting, whether it is planting vegetables and fruits, greening, farms, parks and communities, and transplanting scenes can often be seen. The development trend of seedling transplanting machinery is gradually moving towards mechanization and automation, which can improve the speed of transplanting per unit time, reduce the labor intensity of manual transplanting, and reduce the cost of transplanting seedlings. The seedling picking and conveying system is a composite mechanism composed of levers, shafts, etc. When picking up seedlings, the seedling picking mechanism rotates. When the seedling picking mechanism triggers the position sensor, the program controller receives a signal and drives the stepper motor to rotate, driving the moving disk of the seedling supply mechanism to move the hole grid to the position to be picked up.