An electronic device having a touch screen and an operation control method thereof are provided. The electronic includes a touch screen which receives a plurality of manipulations; and a controller which determines whether a second manipulation is made on a screen displayed on the touch screen during a predetermined time period after a first manipulation is made on the screen, and controls to perform an operation corresponding to the second manipulation instead of an operation corresponding to the first manipulation to be performed, if the second manipulation is made during the predetermined time after the first manipulation is made.