While visiting the imperial court in Beijing he met with Prince Mijiddorjiin Khanddorj with whom he first broached the idea of overthrowing the Manchu domination of Outer Mongolia.
In 1911 he and other Mongolian nobility and high ranking Buddhist lamas participated in a secret congress in Ikh Khüree convened by Mongolia's religious leader, the Jebtsundamba Khutuktu, to formulate a declaration of independence from Manchu Chinese rule.
Once the declaration was issued, Damdinsüren helped mobilize thousands of soldiers, seized the northern Inner Mongolian city of Hailar and offered his allegiance to the Bogd Khan.
[3] Under the Bogd Khan's government he served as counselor first class of the ministry of the army and then Deputy Minister of Foreign Affairs.
On February 2, 1913 Damdinsüren was one of the signatories to the Treaty of friendship and alliance between the Government Mongolia and Tibet in which the two countries declared mutual recognition and allegiance.