The invention provides a duck-billed soil opener opening and closing control mechanism for a corn planter. The duck-billed soil opener opening and closing control mechanism comprises a lower
torsion spring, an upper
torsion spring, an upper retaining block, a sliding groove, a steel
wire rope, a supporting rod, a seed case, a seed case projection, a T-shaped block, a lower retaining block and a V-shaped block. The control mechanism is characterized in that an upper clamping spring and a lower clamping spring are fixed on the inner wall of the seed case, the T-shaped block and the V-shaped block are hinged on the inner wall of the seed case, the upper retaining block is fixed on the upper left corner of the T-shaped block, the lower retaining block is fixed on the right side of the V-shaped block, the sliding groove is formed in the seed case, and the steel
wire rope penetrates the sliding groove. According to the duck-billed soil opener opening and closing control mechanism for the corn planter, original easy wearing portion is changed into the standard steel
wire rope, parts and components are more durable and simple and convenient to obtain and replace, rapid maintenance and replacement can be achieved when the easy wearing portion is damaged in the corn planting process, replacement time is shortened, and the mechanism is simple, convenient to open and close, and planting quality is improved.