Method and apparatus for authenticating password of user device using password icon

PURPOSE: A method and an apparatus for authenticating password of a user device are provided to prevent the exposure of password information. CONSTITUTION: A password icon corresponding to password among a plurality of icons and the traveling direction of the password icon are set(S100). The icons are successively carried according to the operation of a user(S110). If the traveling direction of the password icon and password icon are successively conformed, a password authentication device certifies password(S130).