An Always On Display (AOD) theme display method is provided. In the method, when a mobile device is under a screen-on theme, one or more first controls included in the screen-on theme are separately selected on an AOD settings interface based on a detected operation, and one or more second controls are selected on a second control settings interface, where the second control is a lower-level control of the first control, and at least one first control includes the second control. When the mobile device is switched from a screen-on state to an AOD state, a control displayed in an AOD theme is a part of the first controls included in the screen-on theme and/or a part of the second controls. The method meets a user requirement for more refined or personalized settings, so that the AOD theme is consistent with or close to the screen-on theme in style. This improves user experience.