The China-Japan Agon Cup is a Go competition.
The China-Japan Agon Cup is a tournament where the current Agon Cup/Ahan Tongshan Cup title holders from China and Japan play each other.
| Year | Winner | Runner-up |
|---|---|---|
| 1999 | Kobayashi Kōichi | Ma Xiaochun |
| 2000 | Cho Sonjin | Zhou Heyang |
| 2001 | Cho Sonjin | Liu Jing |
| 2002 | Cho Chikun | Yu Bin |
| 2003 | Gu Li | Kato Masao |
| 2004 | Zhou Heyang | Hane Naoki |
| 2005 | Gu Li | Iyama Yuta |
| 2006 | Liu Xing | Cho U |
| 2007 | Liu Xing | Cho U |
| 2008 | Gu Li | Cho U |
| 2009 | Sun Tengyu | Hane Naoki |
| 2010 | Qiu Jun | Yamashita Keigo |
| 2011 | Piao Wenyao | Iyama Yuta |
| 2012 | Gu Li | Cho U |
| 2013 | Lian Xiao | Murakawa Daisuke |
| 2014 | Ke Jie | Iyama Yuta |
| 2015 | Iyama Yuta | Huang Yunsong |