The present invention discloses a method and apparatus for assisting user input based on the mobile terminal browser, including: storing login authentication information entered by a user when the user logs in a website for a first time from a mobile terminal; after determining that a current page in the mobile terminal browser is a login page and the user logs in after the first time, loading the stored authentication login information to the current login page; receiving the login authentication trigger information; encapsulating the loaded login authentication information of the current login page; and generating a login request for login authentication by a website corresponding to the current login page. By using the disclosed method and apparatus, the number of times the user is required to enter the username and password can be reduced, and the amount of time for the user to access Internet websites can be reduced.