1. A representative frame selecting system comprising: an importance obtaining unit that obtains importance of each frame from calculating on the basis of a length of a similar frame interval formed of consecutive frames each of which has a value according to a similarity between each of the frames included in video information that is equal to or more than a standard; an evaluation value obtaining unit that obtains an evaluation value of each frame from calculating on the basis of an evaluation standard from frames adjacent to each frame; and a representative frame selecting unit that selects at least one representative frame among the frames included in the video information, on the basis of the importance and the evaluation value of each frame.