A folder management method and device. The method includes: displaying a folder icon including a set of icons of at least two applications, and the set of icons is displayed as a thumbnail icon, and, in the thumbnail icon, each of the icons of the at least two applications is displayed in a shrunk size, and the folder icon further including an enlarged first icon associated with a first application, where the enlarged first icon is displayed adjacent to the thumbnail icon without the first icon, and where a size of the enlarged first icon is a same size as the thumbnail icon. The enlarged icon can be changed or displayed more according to application usage.