The invention proposes a method and a device for displaying a target object. The method comprises the steps as follows: (a) carrying out initial evaluation on operation liveness and attenuation cycle time T according to a life cycle; (b) judging whether the attenuation cycle time T is achieved; if not, executing the step (c), if so, updating the operation liveness to be H=lambdaH, and recording the updating time; (c), judging whether an operation behavior is monitored, if not, executing the step (b), otherwise, updating the operation liveness to be H=H+Wo; (d) reading the operation liveness, ordering the operation liveness, and displaying the target object corresponding to the operation liveness on an interface according to the corresponding relation of an order of the operation liveness and the interface display position. According to the method, an icon or a link of application with high operation liveness is placed at a prominent position, or the information with high operation liveness in the application is displayed at the prominent position, so that the icon or link of the application and the information with high liveness in the application can be conveniently examined by a user, and the target object can be fast located.