The present invention relates to an improved sprayer for spraying drugs while travelling at a walking speed by using a caterpillar installed on a body of a travelling-type carriage carrier and an engine, a sprayer, and a drug tank installed on an upper plate of the travelling-type carriage carrier, and more particularly, to a sprayer for travelling-type carriage carrier which includes: a sprayer mount installed on a front side of an upper plate of a body of a travelling-type carriage carrier to hold a sprayer support plate； an axis holder installed on the center of the sprayer mount in a vertical direction to hold a support axis on the sprayer support plate so the sprayer rotates on the sprayer mount； a crank protrusion formed on the surface of a crank plate attached on a rotation axis of a motor installed on the side of the sprayer mount； a protrusion piece installed on one side on a lower surface of the sprayer support plate to connect a connection rod between the protrusion piece on the sprayer support plate and the crank protrusion on the crank plate； and hooks installed on both sides of the sprayer support plate and joint rings installed on both sides of the sprayer mount corresponding to the positions of the hooks on the sprayer support plate so the hooks on the sprayer support plate are engaged with or disengaged from the joint rings. According to the present invention, the sprayer for a travelling-type carriage carrier can repeatedly rotate on the sprayer mount on the front end in a horizontal direction and at a certain angle. 본 발명은 주행형 운반기 차체에 케터필러를 장치하고, 차체 상판에 엔진과 분무기와 약제통과 살포기를 탑재하여 보행속도로 주행하면서 약제를 살포하는 살포기를 개량한 것인데 보다 구체적인 것은, 차체 상판 전방에 살포기탑재부를 형성하여 살포기지지판을 탑재하고, 살포기탑재부 중앙에 수직으로 축잡이를 형성하여 살포기지지판에 형성한 지지축을 끼워 살포기가 탑재부에서 회전될 수 있게 구성하고, 살포기탑재부의 측방에 별도로 모터를 장치하여 그 회전축에 부착한 크랭크판의 표면에 크랭크돌기를 형성하고, 살포기지지판 저면 일측방에 돌출편을 부착하여 살포기 지지판의 돌출편과 크랭크판의 크랭크돌기 사이에 연결로드를 연결하며, 살포기지지판의 양측면에 걸고리를 부착하고, 이와 대응하는 살포기탑재부의 양측면에 체결고리를 장치하여 살포기지지판의 걸고리를 체결고리에 착탈시킬 수 있게 함으로써, 약제살포시
