The present invention relates to an agricultural chemical sprayer having a residual quantity display unit. The agricultural chemical sprayer comprises: a spraying nozzle for spraying agricultural chemicals discharged at high pressure by a high pressure pump through a hose a box-shaped residual quantity display unit body having assembling units formed in the left and right thereof to be assembled with the spraying nozzle or hose a valve installed between the residual quantity display unit body and the hose with a connection member as a medium so as to control supplied agricultural chemicals a display unit capable of displaying a residual quantity of agricultural chemicals as a number or a character in the outside of the residual quantity display unit body and a flow rate measuring means formed in the residual quantity display unit body to measure a flow rate through rotation, and having a cover formed in an entranced thereof to be opened and closed. Accordingly, since one who sprays agricultural chemicals can spray agricultural chemicals while confirming an agricultural chemical residual quantity, personnel expenses may be cut down and costs taken to spray agricultural chemicals may be reduced. Agricultural chemicals may be accurately sprayed onto a farmland to which agricultural chemicals are intended to be sprayed, so that agricultural crops can be helpfully harvested. Work efficiency may be improved by confirming an agricultural chemical residual quantity when spraying agricultural chemicals, so that productivity may be improved when agricultural crops are cultivated.COPYRIGHT KIPO 2015본 발명은 잔량 표시기가 설치된 농약 분사장치에 관한 것으로, 이 농약 분사장치는 고압펌프에 의해 고압으로 방출되는 농약을 호스를 경유하여 살포하는 분사노즐과, 상기 분사노즐 또는 호스에 조립될 수 있도록 좌우측에 각각 조립부가 형성된 박스형의 잔량 표시기 몸체와, 상기 잔량 표시기 몸체와 호스 사이에 연결부재를 매개로 설치되어 공급되는 농약을 제어할 수 있도록 된 밸브와, 상기 잔량 표시기 몸체의 외측에 농약의 잔량을 숫자 또는 문자로 표시할 수 있는 디스플레이부 및, 상기 잔량 표시기 몸체의 내측에 설치되어 회전을 통해 유량을 측정함과 아울러 그 입구에 개폐가능한 커버가 설치된 유량 측정수단을 포함하여 구성된다.따라서, 농약 살포자 한 사람이 농약 잔량을 확인하면서 농약을 살포
