Disclosed herein are a method and apparatus for controlling functionality of a mobile device. The operation of the element function of the mobile device is blocked by a blocking code, and the operation of the blocked element function is unblocked by an unblocking code. The blocking code is a code used to block the operation of the element function of the mobile device in an area in which a user is located, and the unblocking code is a code that is uniquely generated to correspond to the blocking code and that is used to unblock the operation of the blocked element function. By means of the blocking code and the unblocking code, the blocking and unblocking of the operation of an element function that is required in an area in which the user of the mobile device is located may be easily performed.