Rutog was part of the
Maryul kingdom (modern Ladakh), when it was established in the 10th century. It was again consolidated as part of Ladakh during the reign of
Sengge Namgyal, but was later conquered by Lhasa through the
Tibet-Ladakh-Mughal War. Rutog and Ladakh continued to have extensive trading relations at all times, with occasional disputes over borders. The headquarters of the region was at Old
Rudok (Rutog Dzong; ), a hill top location, which boasted a fort as well as several monasteries. During the period of the
British Raj in India, European visitors were expressly prohibited from visiting the Rudok, but the British official
E. B. Wakefield managed to visit it in 1939. With the 1950
Chinese annexation of Tibet, Rutog became part of the
Tibet Autonomous Region of China. In October 1983, the county seat was moved from Old Rudok to the village of
Derub (; ). The site of the new town appears to have been originally a suburb of the Derub village called Gyelgosang (; ). ==Administrative divisions==