The present invention relates to a liquid feed supply method, the feed is supplied to the feeder plate located on the bottom through the feed outlet of the feeder portion of the hopper case containing the feed, the water supply unit is separate from the hopper case the top of the feeder plate In the liquid feed method for supplying a liquid feed mixed with feed and water to pigs, The sensor 110 is installed on the top of the feed plate 30, and if the height from the bottom surface of the liquid feed stored in the feed plate is lower than a certain height, the sensor detects this and transmits a signal to the controller and the controller The solenoid valve is opened automatically by the direction of water supply and water is supplied through the water supply pipe until the height reaches a certain height. When the height is reached, the solenoid valve is automatically locked to remove the liquid feed from the bottom of the feed plate. By always keeping the height above a certain height, In the present invention, when the height from the bottom surface of the liquid feed stored in the feeder plate is below a certain height, water is automatically supplied and supplied until a certain height is reached, and when the pig is hungry, the feed exit is discharged by touching the feed outlet. If the height from the bottom surface of the liquid feed stored in the feeder plate is higher than a certain height, the water supply solenoid valve will not operate and wait until the pig has eaten the liquid feed and lowered to a certain height. Since the pig can conveniently eat a lot of fresh liquid feed, the nutritional state is good, and the waste of liquid feed is low, so it is economical and there is a remarkable effect of less breakage of the liquid feeder.본발명은 액상사료 공급방법에 관한 것으로, 사료가 들어 있는 호퍼 케이스의 사료공급부 하부의 사료출구를 통해 사료가 바닥에 위치한 급이기판에 공급되며, 호퍼 케이스와 별도로 물공급부가 상기 급이기판 상부에 설치되어 있어 돼지에게 사료와 물이 혼합된 액상사료를 공급하는 액상사료 공급방법에 있어서,상기 급이기판(30) 상부에는 센서(110)가 설치되어, 급이기판에 저장되는 액상사료의 바닥면에서부터의
