The present invention provides a sand sprayer (10) comprising: a plurality of frames (11) installed to be rotated vertically in one side of the rear of a rotavator (20) a support frame (12) installed in the rear of the frame (11) a plurality of earthing blades (13) formed away from a predetermined distance in the longitudinal direction of the support frame(12) and a hydraulic cylinder (14) installed to allow the support frame (12) to be rotated vertically. In addition, a support apparatus for a sand sprayer comprises: a fixing portion (110) mounted by being inserted into the inside of a through hole (12a) formed in both sides of the support frame (12) or a mounting hole (150a) formed in both sides of a mounting frame (150) installed to connect each other in one side of the middle of the frame (12) a support portion (120) formed to a lower direction from the outside of the fixing portion (110) a hold portion (130) formed in the lower portion of the support portion (120) and at least one or more wheels (140) installed on the lower portion of the hold portion (130). The present invention has effects of improving the use efficiency by allowing a user to easily install or separate a support apparatus for a sand sprayer according to the need, improving the use efficiency by not adding the weight of the sand sprayer due to separation during furrows and ridges formation work of a sand sprayer, increasing a range of use by adjusting the installation angle and height according to standards of a sand sprayer, and being easily maintained and stored due to a simple structure.COPYRIGHT KIPO 2016본 발명은 로터베이터(20)의 후방 일측에 상하방향으로 회전할 수 있도록 설치하는 다수의 프레임(11)과 상기 프레임(11)의 후방에 설치하는 지지프레임(12)과 상기 지지프레임(12)의 길이방향으로 일정간격 떨어지도록 형성하는 다수의 배토날(13)과 상기 지지프레임(12)을 상하방향으로 회전할 수 있도록 설치하는 유압실린더(14)로 이루어지는 배토기(10)에 있어서, 상기 지지프레임(12)의 양측에 형성한 통공(12a) 또는 상기 프레임(12)의 중간 일측에 서로 연결하도록 설치하는 장착프레임(150)의 양측에 형성한 장착공(150a)의 내부에 삽입하여 장착하는 고정부(110)와 상기 고정부(110)의 외측에서 하부방향으로 형성하는 지지부(120)와 상기 지지부(120)의 하부에 형성하는 받
