Single-row variable speed planter

The utility model relates to a single-row variable speed planter, which comprises a front wheel with a chain wheel, wherein, the front wheel is connected with a gearbox by a chain and the chain wheel, and different planting speeds are realized through the rotation of a shaft. A seed collection implement can realize rapidly clearing seed through a changing chain. A pressing wheel at the back can adjust variable planting depth through a changing chain of a machine frame, and operation is convenient. The utility model can realize the need of planting various crops through changing planting tray; the utility model is a combined type single-row planter.