While some of the members were council members of the party, it included among it's members of the Dai Nihon Kyokai were lawmakers of the House of the Representatives, many of whom also belonged to other political parties that maintained cooperative relations with Dai Nihon Kyokai, including the Toyo Jiyuto (Oriental Liberal Party), the Kokumin Kyokai (National Association [Japan]), The Policy Affairs Research Council (a political party in the Meiji period), and the Domei Club (League Club).
同会専属の衆議院議員も存在したものの、協力関係にあった東洋自由党・国民協会_(日本)・政務調査会_(明治時代の政党)・同盟倶楽部などと掛け持ちであった議員が多かった。