The present invention relates to an electric sterilizing and insecticidal apparatus for a nutrient solution, and more particularly, to a sterilizing and insecticidal apparatus for a nutrient solution, which comprises a central plate (411) composed of a metal plate having a plurality of vertically long through-410);A side plate 420 formed of a metal plate having a plurality of vertically elongated through holes 421 disposed at opposite sides of the center plate 410 so as to face each other and having a ground portion 422 at an upper end thereof;An insulating plate (not shown) which is sandwiched between the center plate 410 and the side plate 420 provided at both sides of the center plate 410 and which has a long slot 431 formed at a position corresponding to the through hole 421 of the side plate 420 430); And is disposed across the middle of the inside of the nutrient solution dispenser 200 to apply alternating voltage and alternating current from the power supply circuit 300 to the center plate 410 and the both side plates 420 to sterilize the nutrient solution, The nutrient solution is supplied to the crop growing line 500 inside the vinyl house so that the through holes of the side plates provided on both sides of the center plate and the center plate are formed to be offset from each other and the alternating current is applied to the center plate and both plates There is an advantage that the nutrient solution is allowed to flow through the through holes of the center plate and the both side plates so that the nutrient solution can be electrically sterilized and disinfected by the alternating current.본 발명은 양액의 전기적 살균 및 살충장치에 관한 것으로서, 더욱 상세하게는 세로로 길게 형성된 통공(411)을 일정간격으로 다수개 형성하고 상단에는 접지부(412)를 형성한 금속판으로 구성된 중심판(410);중심판(410)의 양측에 서로 마주보도록 인접하게 설치하고 세로로 길게 형성된 통공(421)을 일정간격으로 다수개 형성하며 상단에는 접지부(422)를 형성한 금속판으로 구성된 측판(420);중심판(410)과 중심판(410)의 양쪽에 구비된 측판(420) 사이에 끼워져 설치되고 측판(420)의 통공(421)에 대응하는 위치에 가로로 장공(431)을 형성한 절연판(430); 을 포함하여 구성되어 양액배급통(200) 내부의 중간을 가로지르도록 설치