Greater Chaidan Action Committee (Greater Chaidan Action Committee) generally refers to the Greater Chaidan Administrative Committee.

Da Chaidan Administrative Committee is the representative organ of the people's government of Haixi Mongolian and Tibetan Autonomous Prefecture and the administrative organ of Da Chaidan Administrative Region. It is co-located with the Da Chaidan Working Committee, the representative organ of the CPC Haixi Mongolian and Tibetan Autonomous Prefecture Committee, at the county level. On November 1, 2020, the permanent population was 16,287.