In the era when there were no criteria in international DanceSport competitions, only the marking system guaranteed fairness of results. For 100 years from 1907 to 2007, the adjudicator’s preference have served as tools to determine performance. Even if the adjudicator’s judgment problem was in the criteria, it could not be improved. In 2008, when WDSF developed a ‘new IDSF judging system(NJS1.0)’ and applied it to the field, it entered the era of the criteria. As for the objective criteria, Judging Components, Performance Assessment Standards, Indicative Qualities and Scoring Systems can play a role as a judgement tool. WDSF has dramatically improved the judgment system to JS2.0, JS2.1 and AJS3.0 through constant communication with athletes, coach and adjudicators. However, Korean athletes, coach and adjudicators are still applying the past traditional Skating System to the field without knowing the changes and innovations in the WDSF’s judging system. Adjudicators should find judgment problems, but athletes and coach should also know the international judging and marking system to solve the judgment problems. This knowledge will be used as information to solve the problem of judgment in the field and will contribute to solving the challenges of DanceSport for the Olympic official games.