Qutu Tong (557 – 19 November 628[1]), titled Duke of Jiang, Xianbei name Tandouba (坦豆拔), was a general in the Sui and Tang dynasties of China.
In his early years, he was sent to Liangzhou by Emperor Wen of Sui to inspect the horse trading run by local governors and generals.
When the emperor was in the frontline against Goguryeo or touring the southern China along the Grand Canal, Qutu Tong was responsible for defending the de facto vice capital city of Luoyang.
Qutu Tong and Sang Xianhe submitted to the Tang dynasty after this battle, and was promoted to be the chief minister (Shangshu) of the Ministry of Wars by Emperor Gaozu.
After this battle, many Tang generals grabbed treasures from Xue Renguo's warehouse, but Qutu Tong refused to join them.
When Li Shimin was making an inspection tour at Xuanwuling (the imperial tomb of the Northern Wei dynasty, which is to the north of Luoyang), he was ambushed by Shan Xiongxin, the best general serving for Wang Shichong.
[7] In 621, Dou Jiande, another warlord based in Hebei, led his army marching towards Luoyang trying to save Wang Shichong.
During the same time, Qutu Tong played a large role in assisting Li Yuanji in besieging Luoyang so that Wang Shichong could not join forces with Dou Jiande.