The present invention relates to a filter coupling structure of a filter syringe that can be easily assembled by pressing the filter sheet provided in the filter housing by pressing it into a fitting manner, and is provided inside the cylinder in which the chamber for receiving the injection liquid is formed, but a seating stone is formed around the inner surface. A filter housing with a piece formed thereon, a filter sheet seated on a seating protrusion inside the filter housing to filter out foreign substances contained in the injection solution when the injection liquid passes therethrough, and inserted into the filter housing and adhered to the filter sheet to fix the filter sheet It includes a push socket.본 발명은 필터하우징에 구비되는 필터시트를 눌러서 끼움 방식으로 고정하여 간편하게 조립할 수 있는 필터 주사기의 필터 결합구조에 관한 것으로, 주사액이 수용되는 챔버가 형성된 실린더의 내부에 구비되되 내측면 둘레에 안착돌편이 형성된 필터하우징과, 상기 필터하우징 내부의 안착돌편에 안착되어 주사액이 통과할 때 주사액에 포함된 이물질을 걸러주는 필터시트와, 상기 필터하우징의 내부로 삽입되고 필터시트에 밀착되어 필터시트를 고정시키는 누름소켓을 포함한다.
