The rules of the game are designed to ensure that the players are able to play the game fairly in a safe and secure manner. Judo has become a "competitive", in order to make judo can have further development, judo rules also evolved with the times, from the rules to modify the track in recent years, a substantial correction of the rules, the purpose is to implement the judo movement status and Distinguish between other similar motion blur, the period can be amended by the rules to increase the degree of movement of the watch and reduce the player's sports injuries. After a series of amendments, in the latest international judo rules, its penalties for the amendment, the time of the adjustment, as well as determine the outcome and score, the judo races are to make the intensity has improved, and better in terms of time Master degree, which presents a more fluid and exciting game results.