A content reproduction order determination system, comprising: a signal feature series extraction means for, when a content group are inputted, extracting from each content a signal feature series, being a series of signal features caused to correspond to positions on a time axis of the content; a mutual similarity section link generating means for detecting mutual similarity sections, being sections in which the signal features for different contents are similar to each other, from said signal feature series for each content, and generating mutual similarity section link information including information for discriminating the content to which the detected mutual similarity section belongs, information for specifying the position of said mutual similarity section on the time axis of said content, and a link indicative of a correspondence relation between the contents to which similar mutual similarity sections belong; and a content reproduction order determination means for from said mutual similarity section link information, detecting a mutual similarity section located in a beginning part or an ending part on the time axis of the content, detecting contents to which a mutual similarity section similar to the detected mutual similarity section belongs, detecting the position of the mutual similarity section of said detected contents on the time axis of said contents determining a reproduction order of said content based upon a relationship between the position of the mutual similarity section located in said beginning part or ending part and the position of the mutual similarity sectionof said detected contention the time axis, and outputting information of the determined reproduction order of the content as content reproduction order information. a signal feature series extraction means for, when a content group are inputted, extracting from each content a signal feature series, being a series of signal features caused to correspond to positions on a time axis of the content; a mutual similarity section link generating means for detecting mutual similarity sections, being sections in which the signal features for different contents are similar to each other, from said signal feature series for each content, and generating mutual similarity section link information including information for discriminating the content to which the detected mutual similarity section belongs, information for specifying the position of said mutual similarity section on the time axis of said content, and a link indicative of a correspondence relation between the contents to which similar mutual similarity sections belong; and a content reproduction order determination means for from said mutual similarity section link information, detecting a mutual similarity section located in a beginning part or an ending part on the time axis of the content, detecting contents to which a mutual similarity section similar to the detected mutual similarity section belongs, detecting the position of the mutual similarity section of said detected contents on the time axis of said contents determining a reproduction order of said content based upon a relationship between the position of the mutual similarity section located in said beginning part or ending part and the position of the mutual similarity sectionof said detected contention the time axis, and outputting information of the determined reproduction order of the content as content reproduction order information.