PROBLEM TO BE SOLVED: To provide a feeding device for child animals such as child pets or child pigs, whose feeding spaces can automatically be determined in response to the sizes of the child animals for a constant period just after weaned, without relating to the appetites or the like of the child animals and without being never interfered by others. SOLUTION: The feeding device for the child animals, which can simultaneously feed the child animals such as child pets or child pigs within a constant period just after weaned is characterized by comprising a device body A having a shape that one side of a rectangular box is opened to form an entrance 1, and a plurality of book end type partition plates S1which have L-shaped cross sections and are arranged in a space V formed with both lateral side walls 2 and back side wall 3 of the device body A in a state capable of being slid in a direction parallel to the back side wall 3 to partition the space V into a plurality of chambers in a direction parallel to the back side wall 3. COPYRIGHT: (C)2012,JPO&INPIT