Jiang Jing is a fictional character in Water Margin, one of the Four Great Classical Novels of Chinese literature.
Jiang Jing, a native of Tanzhou (潭州; around present-day Changsha, Hunan), is a scholar who has repeatedly failed imperial examinations -- the conventional route to become government official in ancient China.
When he first appears in the book, he is one of the fours chiefs leading the bandit group at Mount Yellow Gate (黃門山), ranked below Ou Peng and above Ma Lin and Tao Zongwang When Song Jiang is following the outlaws of Liangshan Marsh back to their stronghold after they and some heroes of the Jieyang region saved him in Jiangzhou (江州; present-day Jiujiang, Jiangxi), he comes by Mount Yellow Gate with the group.
Jang Jing is appointed to keep accounts of the grain stock, finance and logistics of Liangshan after the 108 Stars of Destiny came together in what is called the Grand Assembly.
He participates in campaigns against the Liao invaders and rebel forces in Song territory following amnesty by Emperor Huizong for Liangshan.