Provided is a home appliance control device including: a communication interface; and at least one processor configured to transmit, based on a message output standby request being received from a mobile device, the message output standby request to at least one home appliance via the communication interface, determine whether a user exists within a first distance from at least one of the at least one home appliance, and control, based on determining that the user exists within the first distance from a first home appliance from among the at least one home appliance, the first home appliance to output a message corresponding to the message output standby request.