The invention discloses an electromagnetic seedling belt and inter-seedling weeding device. The device comprises a cutter, left side and right side cutting tables, a connecting rack, a cutting table electromagnetic control device, a cutter electromagnetic control device, a cutting table reciprocal moving mechanism and a height regulating device. The left and right cutting tables are connected by the connecting rack. The left and right cutting table have the same structure and are arranged in a chirological mode. The cutter is connected with the front end of the cutting table in a sliding mode through a cutter rack. The cutter electromagnetic control device is installed at the rear portion of the cutter rack to control the horizontal reciprocal movement of the cutter. The cutting table reciprocal moving mechanism is horizontally arranged on the cutting table. The cutting table electromagnetic control device is arranged between cutting table located at two sides. The cutting table reciprocal moving mechanism and the cutting table electromagnetic control device are coordinated to control the reciprocal opening-closing movement. The front end of the connecting rack is welded to the cutting table reciprocal moving mechanism, and the rear end is connected with the height regulating device.