PURPOSE: A nozzle sterilizer for a bidet and an assembly thereof are provided to effectively sterilize bacteria caused by dirt entering the nozzle tip by illuminating the nozzle tip with a sterilization lamp. CONSTITUTION: An assembly of a nozzle sterilizer for a bidet comprises a bracket(700) and a sterilization lamp(740). The bracket comprises a first body(710), a second body(720), and a screw(732). The first body has a through hole(711) which is connected to the outlet of a nozzle tip. The second body has an inner groove(721) which is connected to the through hole. The sterilization lamp is arranged in the groove and fixed by a packing inserted in the groove. The screw is coupled to the second body in order to fix the sterilization lamp.본 발명은 노즐선단부의 분출구에 오물이 들어가 기생하는 세균을 효과적으로 살균할 수 있는 비데용 노즐 살균장치의 어셈블리 및 비데용 노즐 살균장치에 관한 것이다.