采用文献资料法、录像观察法、TOPSIS分析法及数理统计法等研究方法,对第31届夏季奥运会中国男篮及对手攻防能力指标进行综合量化评价,并进行对比分析。研究结论 :1)进攻能力方面,美国、塞尔维亚男篮属于进攻强队,中国男篮的进攻能力最弱;2)防守能力方面,法国男篮为防守强队,中国男篮整体上仅高于澳大利亚和委内瑞拉男篮;3)在攻、防综合能力方面,中国男篮仅高于委内瑞拉男篮,排在第5位;4)小组赛中6支球队进攻实力与小组排名基本相符,并且排名更依赖于球队的进攻能力。 By using the methods of literature review, video observation, TOPSIS and mathematical statistics, this paper makes a comprehensive quantitative evaluation of offensive and defensive capabilities of the Chinese men ’s basketball team and opponents at the 31st Summer Olympic Games and makes a comparative analysis. Research conclusions: 1) As for offensive ability, the United States and Serbia are among the most aggressive offensive teams and the weakest offensive men’s basketball team in China. 2) In terms of defensive ability, the French men’s basketball team is the defensive strong team, Australia and Venezuela men’s basketball team; 3) In the attack, defense comprehensive ability, the Chinese men’s basketball team is higher than the Venezuelan men’s basketball team, ranked No. 5; 4) group stage 6 teams offensive power and the group rankings basically, and Ranking is more dependent on the team’s offensive capabilities.