The present invention relates to a damage prevention structure for a pesticide spray nozzle, and more specifically, to a damage prevention structure for a pesticide spray nozzle, which can be prevented from being damaged by chemicals hardened over time with the chemicals remaining on a handle by idling in place without moving anymore when the maximum opening value and the minimum opening value are adjusted in the control of the nozzle discharge rate while performing pest control by being connected to a pesticide sprayer. The damage prevention structure for a pesticide spray nozzle comprises: a spray adjustment body which has a spray supply portion connected to a hose connection bar having a hose connection screw to which a hose is connected, and has, on the inner surface, a spray fixing screw to which an adjuster fixing bar is coupled, a spray adjustment screw, and a pipe connection screw to which a connection bar is coupled； a spray amount adjuster which has a spray amount adjustment shaft coupled to the inner diameter of the spray adjustment body and reciprocating according to rotation, and to which a spray amount adjustment handle controlling the amount of pesticides supplied is connected； and a spray pipe which is coupled to the connection bar and has a spray nozzle formed on a front end thereof. The width of the spray amount adjustment screw has the same width as a spray amount adjustment male screw. An interval between the spray fixing screw and the spray amount adjustment screw is greater than that of the spray amount adjustment male screw. An interval between the spray amount adjustment screw and the pipe connection screw is greater than that between a front end of the spray amount adjustment male screw and a front end of a protruding shaft portion.COPYRIGHT KIPO 2020본 발명은 농약 분무 노즐용 손상 방지구조에 관한 것으로, 더욱 상세히게는 농약 분무기에 연결되어 방제를 수행하는 과정에서 분무량을 조절할 때 최대 개방치와 최소 개방치가 조절되면 더 이상 이동하지 않고 그자리에서 공회전되도록 함으로써 손잡이와 약액이 남은 상태로 시간이 경과함에 따라 굳어 손상되는 것을 방지할 수 있도록 하는 농약 분무 노즐용
