A method for recommending a lock-screen wallpaper and related products are provided, and the method includes the follows. Whether a mobile terminal is in a preset lifting state is detected by a gesture sensor by the mobile terminal. A front-facing camera is activated and a first user-facial image is captured when the mobile terminal is in the preset lifting state. A first expression of the first user-facial image is analyzed and a first target lock-screen wallpaper type-set corresponding to the first expression is determined based on a correspondence between expressions and lock-screen wallpaper type-sets. A screen of the mobile terminal is lit up, a lock-screen interface is entered, and a first lock-screen wallpaper is displayed on the lock-screen interface. The first lock-screen wallpaper is one selected from the first target lock-screen wallpaper type-set.