A display device for controlling a home appliance by using voice recognition according to an embodiment of the present invention includes a display unit, a wireless communication unit configured to wirelessly communicate with the home appliance, and a control unit configured to: receive a voice command; when the intention of the received voice command is to request an object handling method, determine an operation mode of the home appliance for handling an object based on information of the object; and transmit, to the home appliance, a control command for operating the home appliance in the determined operation mode.