The party's original name was "Democracy and Science Forum" on its informal founding in 1944; the current name refers to the date of Chinese victory in the Second Sino-Japanese War (3 September 1945).

On 3 September 1945, after the end of the Second Sino-Japanese War, the organization was held an enlarged meeting to rename itself to the Jiusan Forum, referencing the date of victory.

According to its constitution, the Jiusan Society is officially committed to socialism with Chinese characteristics and upholding the leadership of the CCP.

[2] As of 30 June 2023[update], the Jiusan Society has 30 province-level, 282 prefecture-level city, 29 county-level and 7,874 grassroot level organizations.

[1] The party publishes the newspapers Democracy and Science (民主与科学)[6] and Central Communications of the Jiusan Society (九三中央社讯).