A display apparatus for mirroring a screen image is provided. The display apparatus includes a display unit configured to display a predetermined screen image, an input unit configured to receive a predetermined command or data, a control unit configured to control the predetermined screen image to be transmitted to another display apparatus in order to make the other display apparatus mirror the predetermined screen image, and to reduce power consumption used to display the predetermined screen image when screen image mirroring is requested, and a communication unit configured to transmit the predetermined screen image to the other display apparatus. Also, the display apparatus reduces the power consumption caused when a mirroring service is used.