The present invention is to feed the feed feed into the inside of the screw feeder through the feed hopper on the lower side from the feed storage container to the aquaculture tank along the screw casing using the feed screw of the screw feeder which rotates with the power of the screw motor. In the lower portion of the feed container, a support container for supporting the feed container is installed, and the screw casing relates to a screw-type feed device for aquaculture formed through a wall of the support container and extended to the front side by a predetermined length. Is divided into a screw casing and a rear casing disposed inside the support cylinder and a front casing detachably assembled and installed on the front surface of the support cylinder, and the screw shaft of the transfer screw is detachable by screwing with the drive shaft of the screw motor. By assembling and installing as possible, it is possible to perform the cleaning, repair, and maintenance work of the screw feeder very easily and simply, and to block the amount of feed to the upper part of the inner circumferential surface of the screw casing corresponding to the front side of the input hopper. By protruding the plate, the feed supplied through the screw casing is smoothly pushed out by the conveying screw without being excessively compressed between the conveying screw and the screw casing, and scattering of the feed spreader installed at the distal end of the screw casing The present invention relates to a screw-type feeder for aquaculture farms, which makes it possible to secure a wider spread of feed by using a flap as a “” type curved plate.본 발명은 사료저장통으로부터 그 하단측의 투입호퍼를 거쳐 스크류피더의 내부로 투입된 사료를 스크류모터의 동력으로 축회전하는 스크류피더의 이송스크류를 이용하여 스크류케이싱을 따라 양식수조로 공급시키도록 하되, 상기 사료저장통의 하부에는 사료저장통을 지지하는 받침통이 설치되고, 상기 스크류케이싱은 받침통의 벽체를 관통하여 소정의 길이만큼 전방측으로 연장 형성된 양식장용 스크류식 사료공급장치에 관한 것으로서, 더욱 상세하게는 상기 스크류케이싱을 받침통의 내부에 배치되는 후방케이싱과 받침통의 전방면에 착탈 가능하게 조립 설치되는 전방케이싱으로 분할 형성시키고, 상기 이송스크류의 스크류축은 스크류모터의 구동축과 나사체결식
