The present invention relates to a front harrow for a tractor. Previously, there were problems that simultaneous earth digging and leveling tasks were impossible, the leveling task time and the oil consumption increased due to frequent rotation of the tractor, the paddy field became a quagmire or the ground of the paddy field was squashed due to the weight of the tractor, which makes the operation of a rice transplanter difficult in the rice transplanting work, and that the structure became complicated as a separate cylinder was necessary for controlling the angle of a harrow plate. In order to solve the problems, the present invention provides a front harrow for a tractor easy to control the angel of the harrow plate, capable of simultaneously performing the earth digging and leveling tasks, easy to attach/detach to an unloader installed on the front end of a loader, preventing frequent rotation of the tractor in the leveling task, and capable of reducing the leveling task time and the oil consumption. In order to achieve the purpose, the present invention provides a front harrow for a tractor installed to be attachable/detachable on one side to an unloader (10) installed to be able to be bent front and back by a cylinder (110) on the front end of a loader (100) installed in front of the tractor so as to move front and back, and up and down. The front harrow for a tractor of the present invention comprises a support frame (30) a coupling device (20) having a hook (22) and a fastening ring (24) fastening to a hooking bar (12) and a fastening bar (14) formed in the unloader (10) to be able to attach/detach respectively on one side, and coupled with one side of the support frame (30) to be able to attach/detach on the other side and a harrow plate (40) coupled with the other side facing one side of the support frame (30) on one side, and alternately having a lead-in (52) and a protrusion (54) on the other side to be curved.COPYRIGHT KIPO 2014본 발명은 트랙터용 전방 써레에 관한 것이다.