A modular movable robot including a main body, a traveling unit mounted on a lower end of the main body, a module coupling plate which is mounted on an upper end of the main body and on which an object to be transferred is disposed on a top surface thereof, a port module coupled to the top surface of the module coupling plate to fix the object to be transferred, the port module being configured to provide module information to the module coupling plate, a body display unit extending from one end of the module coupling plate, a head display unit rotatably mounted on an upper end of the body display unit, and a control unit configured to receive the module information from the module coupling plate to control at least one of the body display unit or the head display unit on the basis of the received information.