PROBLEM TO BE SOLVED: To provide a chemical sprayer capable of easily suppressing an increase in manufacturing cost. SOLUTION: A traveling device TR, a drug tank 15 for storing a drug, a drug spraying section 2 for spraying a drug stored in the drug tank 15, a driving section 14 on which an operator can board, and a driving section 14 A ladder-shaped boarding / alighting step 5 extending downward is provided, and the driver unit 14 has a driver's seat 51 in which an operator can sit and an entrance / exit 53 through which the operator can pass. The entrance / exit 53 is provided only on one side in the left-right direction of the machine, out of one side in the left-right direction of the machine and the other side in the left-right direction of the machine, and the boarding / alighting step 5 is provided on one side in the left-right direction of the machine and the other side in the left-right direction of the machine. Of these, it is provided only on one side in the left-right direction of the aircraft. [Selection diagram] Fig. 1【課題】製造コストの増大を抑制しやすい薬剤散布機を提供する。【解決手段】走行装置ＴＲと、薬剤を貯留する薬剤タンク１５と、薬剤タンク１５に貯留された薬剤を散布する薬剤散布部２と、作業者が搭乗可能な運転部１４と、運転部１４から下側へ延びる梯子状の乗降ステップ５と、を備え、運転部１４は、作業者が着座可能な運転座席５１と、作業者が通過可能な出入口５３と、を有しており、運転部１４において、出入口５３は、機体左右方向一方側と機体左右方向他方側とのうち、機体左右方向一方側のみに設けられており、乗降ステップ５は、機体左右方向一方側と機体左右方向他方側とのうち、機体左右方向一方側のみに設けられている。【選択図】図１
