The present invention provides a seedling transplanter, which has not complicated configuration of various cables, simple structure and superior maintenance and maintenance performance. The planting cable (72) and seedling sending cable (73) of the plant part clutch and seedling sending part clutch of the seedling planting device corresponding to the strips of respective operations are connected to the seedling transplanter fro planting a plurality of strips on the common operating arms ( 80a, 80b), in the planting cable (72) and the seedling sending cable (73), one side connects the inner cables on the connection arms (80a, 80b), while the other side connects the outer cables (73A, 73B) to the operating arms (80a, 80b). By adopting the structure, the cable configuration is not complicated and simple, the cable will not interfere during the maintenance of the cable, and the invention has excellent performance.