Method for updating application software and device

The invention discloses a method for updating application software and a device. The method comprises the following steps that: it is monitored that an update for a version of a current operating application software exists; an update promoting message is displayed on a display page of the current operating application software; an update indication which is input by a user and confirms the update promoting message is detected, and updating is carried out on the application software. By adopting the above the updating method, when a certain application software is operated on a terminal, it is monitored that the update for the version of the current operating application software exists, and the update promoting message is displayed on the display page of the current operating application software, so that the user can obtain the message, the updating is timely carried out on the application, and the security performance and the stability of a system are improved.