The present invention relates to a hay cut inducement apparatus of a baler, which is able to cut rice straw picked up by a pickup unit of the baler, comprising: a main frame (100) which includes front/rear pipes (110, 120) installed respectively on the front/rear side of side walls (130) installed on end units on both sides, a plurality of partitions (140) installed between the front/rear pipes at regular intervals, a cover (150) installed on an external side of the partitions on the outermost edge, and a finishing material (160) forming an engagement space (S) formed on an upper side of the front pipe； a cutting knife guide means (200) which includes a rear end fixated on the rear pipe at a selected position between the parts between the partitions, a front end inserted into and engaged with the engagement space, and a cutting knife guide plate (210) formed in the center in a longitudinal direction with a cutting knife guide hole (220)； a cutting knife operation means (300) which includes a rotary shaft (310) installed on a lower side of the rear pipe to be rotated by penetrating the side walls on both sides and to have a plurality of arms (320) installed at regular intervals in a longitudinal direction, and a locking bar (330) installed on a rear side of the front pipe to be engaged with a front end unit of a cutting knife (340), which rises and falls by being positioned on the cutting knife guide hole, and a front lower side of the cutting knife guide plate； and a cylinder (400) whose one side end is installed on one side of a lower side of the main frame and whose other end is connected to and installed on the arm on the outermost edge, thereby elevating/lowering the cutting knife.본 발명은 베일러의 픽업부에서 끌어올리는 볏짚을 절단하는 베일러의 건초절단 유도장치에 관한 것으로, 그 구성은, 양측 단부에 설치된 측벽(130)의 전/후방에는 각각의 전/후방파이프(110,120)가 설치되고, 상기 전/후방파이프 간에는 복수 개의 격벽(140)이 등 간격으로 설치되며, 상기 최 외곽의 격벽 외측에는 덮개(150)가 설치되고, 상기 전방파이프의 상부에는 결합공간(S)을 형성하는 마감재(160)를 설치하여 된 본체(100)； 상기 각 격벽의 사이사이 중 선택된 곳에는 후단이 후방파이프에 고정되
