The invention discloses a screen unlocking method and device. The screen unlocking method comprises the steps of presetting and storing multiple types of unlocking conditions; displaying a screen unlocking interface; receiving an instruction for selecting one type of unlocking conditions, input by a user; performing screen unlocking, namely (a) displaying prompting information of the selected type of unlocking conditions, (b) receiving unlocking information input by the user, (c) judging whether the unlocking information input by the user is matched with unlocking information of preset unlocking conditions corresponding to the prompting information of the currently-displayed unlocking conditions or not, (d) judging whether the total number of matched unlocking conditions is consistent to the preset matching number or not if the unlocking information input by the user is matched with the unlocking information of the preset unlocking conditions, achieving screen unlocking if the total number of the matched unlocking conditions is consistent to the preset matching number, and repeatedly executing the steps (a), (b), (c) and (d) if the total number of the matched unlocking conditions is not consistent to the preset matching number. By means of the screen unlocking method, the requirements for user's memorizing facilitating, high safety, high unlocking success rate, selection on different unlocking conditions under different situations and the like of the unlocking information can be met simultaneously.