| With the end of Rio Olympic Games in Brazil in 2016,the International Judo Federation(IJF),as usual,once again made adjustments and reforms to judo competition rules.This paper uses the methods of literature,video analysis,mathematical statistics and comparative analysis to collect and analyze the data of the technical application,punishment and competition time of the men’s performance in the 2018 Grand Slam after the implementation of the new rules,and to compare with the 2016 Grand Slam to verify the previous research results of Calmet,which is also the Tokyo Olympic cycle The preparation of judo events provides a reasonable theoretical reference to enrich the relationship between judo competition rules and Judo Sports Development.Research shows:1.After the rule change,the male judo athletes in the competition are more inclined to the use of throwing skills,the main techniques used are carried throw,small cut,small cut,in the unit,large cut.2.After the rule change,the men’s judo athletes in the competition are more inclined to the realization of the foot skill score,the main scoring techniques are:shoulder throw,float down,sleeve fishing into the waist,cut inside,inside,valley.3.After the rule change,men’s judo athletes are more focused on the realization of a score in the competition.4.After the rules change,male judo athletes often achieve the scores of "one copy"and "skills" in 1-2min and gold points overtime(after 4min)"The total number of scores is increasing.5.After the rule change,male judo athletes are prone to the penalty of noncombativity,avoiding fighting with opponents,and obstructing opponents’ avoid-grip in the competition.6.After the rule change,the duration of the minor grade male judo athletes on the track is longer,while the duration of the major grade male judo athletes on the track is shorter. |