| Ministers |
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| Portfolio | Name | Political party | Term start | Term end |
|---|
| Prime Minister | Kuniaki Koiso | | Taisei Yokusankai | July 22, 1944 | April 7, 1945 |
| Minister for Foreign Affairs | Mamoru Shigemitsu | | Independent | July 22, 1944 | April 7, 1945 |
| Minister of Home Affairs | Shigeo Ōdachi | | Independent | July 22, 1944 | April 7, 1945 |
| Minister of Finance | Ishiwata Sōtarō | | Taisei Yokusankai | July 22, 1944 | February 21, 1945 |
| Juichi Tsushima | | Independent | February 21, 1945 | April 7, 1945 |
| Minister of the Army | Hajime Sugiyama | | Military (Army) | July 22, 1944 | April 7, 1945 |
| Minister of the Navy | Mitsumasa Yonai | | Military (Navy) | July 22, 1944 | April 7, 1945 |
| Minister of Justice | Matsuzaka Hiromasa | | Independent | July 22, 1944 | April 7, 1945 |
| Minister of Education | Ninomiya Harushige | | Military (Army) | July 22, 1944 | February 10, 1945 |
| Hideo Kodama | | Dai Nippon Seijikai | February 10, 1945 | April 7, 1945 |
| Minister of Health | Hirose Hisatada | | Taisei Yokusankai | July 22, 1944 | February 10, 1945 |
| Aikawa Katsuroku | | Independent | February 10, 1945 | April 7, 1945 |
| Minister of Greater East Asia | Mamoru Shigemitsu | | Independent | July 22, 1944 | April 7, 1945 |
| Minister of Agriculture and Commerce | Toshio Shimada | | Dai Nippon Seijikai | July 22, 1944 | April 7, 1945 |
| Minister of Munitions | Ginjirō Fujiwara | | Independent | July 22, 1944 | December 19, 1944 |
| Shigeru Yoshida | | Independent | December 19, 1944 | April 7, 1945 |
| Minister of Transportation and Communications | Yonezō Maeda | | Dai Nippon Seijikai | July 22, 1944 | April 7, 1945 |
| Minister of State | Machida Chūji | | Dai Nippon Seijikai | July 22, 1944 | April 7, 1945 |
| Minister of State | Hideo Kodama | | Taisei Yokusankai | July 22, 1944 | February 10, 1945 |
| Minister of State | Hirose Hisatada | | Taisei Yokusankai | February 10, 1945 | February 21, 1945 |
| Minister of State | Ishiwata Sōtarō | | Dai Nippon Seijikai | February 21, 1945 | April 7, 1945 |
| Minister of State | Taketora Ogata | | Independent | July 22, 1944 | April 7, 1945 |
| Minister of State | Seizō Kobayashi | | Taisei Yokusankai | December 19, 1944 | March 1, 1945 |
| Chief Cabinet Secretary | Miura Kunio | | Independent | July 22, 1944 | July 29, 1944 |
| Tanaka Takeo | | Independent | July 29, 1944 | February 10, 1945 |
| Hirose Hisatada | | Taisei Yokusankai | February 10, 1945 | February 21, 1945 |
| Ishiwata Sōtarō | | Dai Nippon Seijikai | February 21, 1945 | April 7, 1945 |
| Director-General of the Cabinet Legislation Bureau | Miura Kunio | | Independent | July 22, 1944 | April 7, 1945 |
| Parliamentary Vice-Ministers |
|---|
| Portfolio | Name | Political party | Term start | Term end |
|---|
| Parliamentary Vice-Minister for Foreign Affairs | Matsuda Masayuki | | Independent | September 1, 1944 | April 7, 1945 |
| Parliamentary Vice-Minister of Home Affairs | Takechi Yūki | | Dai Nippon Seijikai | September 1, 1944 | April 7, 1945 |
| Parliamentary Vice-Minister of Finance | Ogasawara Sankurō | | Dai Nippon Seijikai | September 1, 1944 | April 7, 1945 |
| Parliamentary Vice-Minister of the Army | Ōshima Rikutarō | | Independent | September 1, 1944 | April 7, 1945 |
| Parliamentary Vice-Minister of the Navy | Kishida Masaki | | Dai Nippon Seijikai | September 1, 1944 | April 7, 1945 |
| Parliamentary Vice-Minister of Justice | Nakai Kazuo | | Dai Nippon Seijikai | September 1, 1944 | April 7, 1945 |
| Parliamentary Vice-Minister of Education | Imai Takehiko | | Dai Nippon Seijikai | September 1, 1944 | April 7, 1945 |
| Parliamentary Vice-Minister of Health | Nakaigawa Hiroshi | | Dai Nippon Seijikai | September 1, 1944 | April 7, 1945 |
| Parliamentary Vice-Minister of Greater East Asia | Shinohara Rokurō | | Dai Nippon Seijikai | September 1, 1944 | April 7, 1945 |
| Parliamentary Vice-Minister of Agriculture and Commerce | Oyama Kuranosuke | | Dai Nippon Seijikai | September 1, 1944 | April 7, 1945 |
| Parliamentary Vice-Minister of Munitions | Matsumura Kōzō | | Dai Nippon Seijikai | September 1, 1944 | April 7, 1945 |
| Parliamentary Vice-Minister of Transport and Communications | Maeda Fusanosuke | | Dai Nippon Seijikai | September 1, 1944 | April 7, 1945 |
| Parliamentary Undersecretaries |
|---|
| Portfolio | Name | Political party | Term start | Term end |
|---|
| Parliamentary Undersecretary for Foreign Affairs | Morishita Kunio | | Dai Nippon Seijikai | September 1, 1944 | April 7, 1945 |
| Parliamentary Undersecretary of Home Affairs | Satō Yōnosuke | | Dai Nippon Seijikai | September 1, 1944 | April 7, 1945 |
| Parliamentary Undersecretary of Finance | Tamura Hidekichi | | Dai Nippon Seijikai | September 1, 1944 | April 7, 1945 |
| Parliamentary Undersecretary of the Army | Yorimitsu Yoshiaki | | Dai Nippon Seijikai | September 1, 1944 | April 7, 1945 |
| Parliamentary Undersecretary of the Navy | Nakano Toshio | | Independent | September 1, 1944 | April 7, 1945 |
| Parliamentary Undersecretary of Justice | Muneyoshi Tokugawa | | Independent | September 1, 1944 | April 7, 1945 |
| Parliamentary Undersecretary of Education | Michiharu Mishima | | Independent | September 1, 1944 | April 7, 1945 |
| Parliamentary Undersecretary of Health | Motoharu Baba | | Dai Nippon Seijikai | September 1, 1944 | April 7, 1945 |
| Parliamentary Undersecretary of Greater East Asia | Nakanishi Toshikazu | | Dai Nippon Seijikai | September 1, 1944 | April 7, 1945 |
| Parliamentary Undersecretary of Agriculture and Commerce | Nagano Kōichi | | Dai Nippon Seijikai | September 1, 1944 | April 7, 1945 |
| Parliamentary Undersecretary of Munitions | Nakamura Umekichi | | Dai Nippon Seijikai | September 1, 1944 | April 7, 1945 |
| Parliamentary Undersecretary of Transport and Communications | Nanjō Tokuo | | Dai Nippon Seijikai | September 1, 1944 | April 7, 1945 |
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| Source: [1] |
