Li Ping and Cao Zhen were the defending champions. Li did not compete this year and Cao instead teamed up with Zhang Chao.
Zhang Chao and Cao Zhen won in the final against Hao Shuai and Mu Zi 11–7, 11–7, 11–9, 9–11, 11–8. Thus Cao retained her title from 2009 with her second consecutive gold medal in the Mixed Doubles event.
Seeds
Matches will be best of 5 games in qualification matches and best of 7 games in the 128-player sized main draw.
References
2011 World Table Tennis Championships – Mixed Doubles Wikipedia(Text) CC BY-SA