A two-dimension wide- and narrow-line transplanter, comprising a vehicle frame, a plurality of seedling trays, and a transplanting mechanism. The transplanting mechanism comprises a drive box (2) and a rotating box (3). The rotating box (3) is provided with a transplanting arm (4) and a transplanting finger. An empty space (8) is provided between adjacent seedling trays (1). Each of the seedling trays (1) is correspondingly provided with two seedling pick-up positions (5). Each of the seedling pick-up positions (5) is correspondingly provided with the rotating box (3), transplanting arm (4), and transplanting claw (7). Two of the rotating boxes (3) corresponding to the same seedling tray (1) rotate along respective circular paths arranged at an angle to each other, creating a total offset of 2-4 cm between the seedling pick-up position and a seedling transplanting position in each of the left and right transplanting claws (7). The drive box alternates, after completing a full rotation, between a fast rotation power output and a slow rotation power output. The two-dimension wide- and narrow-line transplanter can use, while protecting a rice seedling, a current seedling mat cultivation apparatus. The transplanter can satisfy an agrotechnical requirement for wide- and narrow-line transplanting using a standard seedling mat.La présente invention concerne une repiqueuse en rangée large et étroite à deux dimensions, comprenant un châssis de véhicule, une pluralité de plateaux de semis et un mécanisme de repiquage. Le mécanisme de repiquage comprend une boîte dentraînement (2) et une boîte rotative (3). La boîte rotative (3) est dotée dun bras de repiquage (4) et dun doigt de repiquage. Un espace vide (8) est prévu entre des plateaux de semis adjacents (1). Chacun des plateaux de semis (1) est doté en correspondance de deux positions de ramassage de semis (5). Chacune des positions de ramassage de semis (5) est dotée en correspondance de la boîte rotative (3), du bras de r