A display apparatus and a controlling method thereof are provided. The method includes sensing a first touch, in response to the first touch being sensed, transmitting a first signal corresponding to the first touch to at least one peripheral display apparatus, receiving a second signal corresponding to a second touch from a peripheral display apparatus where the second touch corresponding to the first touch is sensed from among the at least one peripheral display apparatus, and performing communication connection with the peripheral display apparatus where the second touch is sensed, using the first signal and the second signal.