An object of the present invention is to reduce the time and effort of removing a frame that supports a spray hose in advance when a traveling machine gets over a kite or the like in a spraying work machine in which a spraying device is attached to the front side of the traveling machine. A spraying device (1) is provided with a hopper (2) for storing a sprayed object, a feeding device (3) attached to the bottom of the hopper, and a spraying hose (5) for guiding the sprayed object fed by the feeding device to the vicinity of the ground. A spraying work machine that supports the front side of the traveling machine body T and performs a spraying operation while moving the traveling machine body, and includes a frame F that supports the spraying device on the front side of the traveling machine body. A holding arm 10 that selectively moves and holds the lower part to a position close to the ground and a position away from the ground is connected. [Selection] Figure 1【課題】走行機体の前側に散布装置を装着して作業を行う散布作業機において、畦などを走行機体が乗り越える際に、事前に散布ホースを支持するフレームを取り外す手間を省く。【解決手段】散布対象物が貯留されるホッパー２と、ホッパーの底部に装着される繰り出し装置３と、繰り出し装置によって繰り出される散布対象物を地面近くに導く散布ホース５とを備える散布装置１を、走行機体Ｔの前側に支持して、走行機体を移動させながら散布作業を行う散布作業機であって、散布装置を走行機体の前側に支持するフレームＦを備え、フレームには、散布ホースの下部を地面に近い位置と地面から離れた位置に選択的に移動して保持する保持アーム１０が連結されている。【選択図】図１
