PROBLEM TO BE SOLVED: To provide a self-propelled pest control machine that allows a chemical tank capacity to be increased.SOLUTION: A self-propelled pest control machine includes in a running vehicle body 2 a cabin 20 that serves as an operator room, a pest control boom 40 configured so that a posture can be switched between a chemical dispersion posture extending in a right-left direction, and a storage posture extending in a front-back direction on a lateral side of the cabin 20, and a chemical tank 30 behind the cabin 20, and can run with right and left front wheels 6 and 6, and right and left rear wheels 7 and 7. The chemical tank 30 is configured so as to be attached to/detached from the running vehicle body 2, and part of the chemical tank 30 is caused to enter the inside of the cabin 20.SELECTED DRAWING: Figure 1
