Abstract: Provided are a method and a system for theme management. According to the method, a client obtains a desktop theme, extracts characteristic value information of one or more comparative items from the desktop theme, then sends the characteristic value information of the one or more comparative items of the desktop theme to the theme management server; the theme management server calculates and obtains similarity degrees between a plurality of desktop themes and a pre-selected reference desktop theme by using a plurality of similarity-degree-calculation-dimensions; ranks the similarity degrees of the plurality of desktop themes; selects a pre-determined number of desktop themes whose similarity degrees are of top ranks and/or bottom ranks, and then sends the selected desktop themes to the client; the client displays to a user a list of desktop themes sent from the theme management server.