The utility model relates to a multi-head automatic milk feeder for mammals, which belongs to the field of implements for feeding the mammals, in particular to a device which installs a multi-head milk feeding nipple on a milk container and comprises the milk container and milk drinking nipples, wherein the milk container is equipped with a foot rest, and the multi-head automatic milk feeder is characterized in that milk outlet holes are arranged on the periphery of the bottom part of the milk container, and the milk outlet holes are connected with the milk drinking nipples; an interlayer is arranged at the middle part of the bottom part of the milk container, and an electric heater is arranged in the interlayer; a water outlet pipe with a water valve switch is connected at the bottom part of the milk container; a transparent closed hole is arranged on the side wall of the milk container, and a thermometer is arranged in the transparent closed hole; and a milk inlet pipe is arranged on the milk container. The multi-head automatic milk feeder has the advantages of being capable of simultaneously carrying out automatic milk feeding for a plurality of mammals and ensuring that the milk feeding temperature meets the requirements. The multi-head automatic milk feeder can conveniently clean the milk container, avoid the insanitation of the milk container, lead milk for feeding to be clean, and lead animals to be less susceptible to illness. The multi-head automatic milk feeder further has the advantages of not retaining the milk in the milk container, saving labor for milk feeding and being applicable to pastures for use.