ASpesialis ganda, Zheng memenangkan ganda putra di [[Indonesia Terbuka]] 2003 bersama [[Sang Yang]]. Zheng dan Sang juga mengamankan poin kemenangan melawan Denmark di final Piala Thomas 2004 , untuk meraih gelar tim dunia putra pertama Tiongkok sejak 1990. Namun, sebagian besar gelar internasionalnya diraih di nomor ganda campuran. Zheng memenangkan Prancis Terbuka 2002 bersama Zhang Yawen dan Hong Kong Terbuka 2006 bersama Zhao Tingting . Gelar ganda campuran lainnya yang diraihnya, semuanya bekerja sama dengan maestro ganda Gao Ling, termasuk Asian Games 2006, China Masters 2007, Kejuaraan All England Open yang bergengsi pada tahun 2007 dan 2008 ; dan Jepang 2007, Jerman, Korea, Malaysia, dan Indonesia Open 2007, 2008. Zhang dan Gao adalah peraih medali perak di belakang Nova Widianto dan Lilyana Natsir dari Indonesia pada Kejuaraan Dunia BWF 2007 di Kuala Lumpur. Mereka dikalahkan di babak 16 besar Olimpiade Beijing 2008 oleh mantan Juara Dunia Nathan Robertson dan Gail Emms . Terkait dengan Ma Jin, Zheng memenangkan gelar ganda campuran di Kejuaraan Dunia BWF 2010A doubles specialist, Zheng won men's doubles at the 2003 [[Indonesia Open (badminton)|Indonesia Open]] with [[Sang Yang]]. Zheng and Sang also secured the winning point against [[Denmark national badminton team|Denmark]] in the final of the [[2004 Thomas Cup]], to clinch [[China national badminton team|China's]] first men's world team title since [[1990 Thomas Cup|1990]]. Most of his international titles, however, have come in mixed doubles. Zheng won the 2002 [[French Open (badminton)|French Open]] with [[Zhang Yawen]] and the 2006 [[Hong Kong Open (badminton)|Hong Kong Open]] with [[Zhao Tingting]]. His other mixed doubles titles, all in partnership with doubles maestro [[Gao Ling]], include the [[Badminton at the 2006 Asian Games|2006 Asian Games]], the [[2007 China Masters Super Series|2007 China Masters]], the prestigious [[All England Open Badminton Championships|All England Open Championships]] in both [[2007 All England Super Series|2007]] and [[2008 All England Super Series|2008]]; and the [[2007 Japan Super Series|2007 Japan]], [[2007 German Open Grand Prix|German]], [[2007 Korea Open Super Series|Korea]], [[2007 Malaysia Super Series|Malaysia]], and the [[2007 Indonesia Super Series|2007]], [[2008 Indonesia Super Series|2008 Indonesia]] Opens. Zhang and Gao were the silver medalists behind Indonesia's [[Nova Widianto]] and [[Lilyana Natsir]] at the [[2007 BWF World Championships]] in Kuala Lumpur. They were upset in the round of 16 at the [[Badminton at the 2008 Summer Olympics|2008 Beijing Olympics]] by former World Champions [[Nathan Robertson]] and [[Gail Emms]]. Associated with Ma Jin, Zheng won the mixed doubles title at the [[2010 BWF World Championships]].
