A child-care robot for use in a nursery school associates child behavior patterns with corresponding robot action patterns, and acquires a child behavior pattern when a child behaves in a specified pattern. The robot selects one of the robot action patterns, which is associated with the acquired child behavior pattern, and performs the selected robot action pattern. Additionally, the robot associates child identifiers with parent identifiers, and receives an inquiry message from a remote terminal indicating a parent identifier. The robot detects one of the child identifiers, which is associated with the parent identifier of the inquiry message, acquires an image or a voice of a child identified by the detected child identifier, and transmits the acquired image or voice to the remote terminal. The robot further moves in search of a child, measures the temperature of the child, and associates the temperature with time of day at which it was measured.