Rice transplanter

The invention discloses a seedling transplanter, belonging to the agricultural machinery, which aims at providing a transplanter that can avoid omission transplanting and empty transplanting. The transplanter comprises a frame, a wheel, a mainshaft, a seedling conveying mechanism, a turnover frame, a seedling clamping mechanism and a transmission mechanism; the mainshaft and a wheel shaft which is provided with the wheel are arranged on the frame; the seedling conveying mechanism consists of a driven shaft, a driving shaft and a conveyer belt; the turnover frame consists of a left rotation disc, a right rotation disc, a shaft sleeve base, a cycloidal grinding disc, a crankshaft and a clamping pipe; the seedling clamping mechanism consists of a large pulling fork shaft, a small pulling fork shaft, a pulling block, a sliding rod, an opening/closing connecting rod, a connecting rod, an opening/closing clamping retaining block and two groups of clamping claws; the transmission mechanism consists of a large chain