A touch input method for a mobile device includes receiving a first touch input as an input of a first finger which is a reference finger, receiving a second touch input of a second finger with elapse of a predetermined time after receiving the first touch input, calculating a relative displacement of the second touch input with respect to the first touch input on the basis of a position of the first touch input and a position of the second touch input, identifying the second finger used for the second touch input on the basis of the relative displacement, determining whether a pattern associated with the first touch input of the first finger and the second touch input of the identified second finger corresponds to a previously stored pattern, correcting the position of the second touch input of the second finger on the basis of a position of the second finger defined in the previously stored pattern when the pattern corresponds to the previously stored pattern, and performing an operation corresponding to the first touch input and the corrected second touch input among previously stored multiple operations.