The present invention discloses a folder management method and device. The method comprises: displaying a folder icon on the touchscreen display, and displaying a drag mark in a first position of the folder icon; detecting a first drag operation to the drag mark, where the first drag operation is used to increase a size of an icon of an application in a folder; and when the first drag operation is detected, displaying, on the touchscreen display, an icon that is of at least one application in at least two applications and that is inside the folder icon, wherein the icon is enlarged for display. In this way, icons, of some applications, in the folder icon can be enlarged for display, which facilitates management of applications in the folder.