While Doraemon is asleep, a famous thief comes and steals his cat-bell. Without his cat-bell, Doraemon starts to act more and more like a normal cat. In order to stop this, Nobita, Shizuka, Suneo, and Gian have to go and search for his bell, so they go to a factory where all of Doraemon's gadgets are made.
Unfortunately the movie Doraemon: Nobita's Secret Gadget Museum is not yet available on HBO Max.
| Art | Toru Minatani | Background Designer |
| Directing | Yukiyo Teramoto | Director |
| Art | Reiko Ikeda | Background Designer |
| Sound | Yuka Kashino | Theme Song Performance |
| Visual Effects | Hidetoshi Owashi | Key Animation |
| Visual Effects | Keiichiro Matsui | Key Animation |
| Visual Effects | Tatsuya Tomaru | Key Animation |
| Visual Effects | Yoshiharu Sato | Key Animation |
| Visual Effects | Yukari Kaku | Key Animation |
| Visual Effects | Takuji Mogi | Key Animation |
| Visual Effects | Masaki Hiraoka | Key Animation |
| Visual Effects | Ryuji Shiromae | Key Animation |
| Visual Effects | Takayuki Uragami | Key Animation |
| Visual Effects | Yuuko Yoshida | Key Animation |
| Visual Effects | Tsuyoshi Yoshioka | Key Animation |
| Visual Effects | Takahiro Tanaka | Key Animation |
| Visual Effects | Shuichi Kitayama | Key Animation |
| Visual Effects | Makiko Shinohara | Key Animation |
| Visual Effects | Daiji Suzuki | Key Animation |
| Visual Effects | Yu Yamashita | Key Animation |
| Visual Effects | Hirofumi Masuda | Key Animation |
| Visual Effects | Keiko Tamaki | Key Animation |
| Visual Effects | Shingo Okano | Key Animation |
| Visual Effects | Misato Kishino | Key Animation |
| Visual Effects | Takatoshi Omori | Key Animation |
| Visual Effects | Maiko Kobayashi | Key Animation |
| Visual Effects | Toshiyuki Anzai | Key Animation |
| Visual Effects | Yoshinobu Ando | Key Animation |
| Visual Effects | Ayano Yoshioka | Key Animation |
| Visual Effects | Atsuo Tobe | Key Animation |
| Visual Effects | Tetsuro Kaku | Key Animation |
| Visual Effects | Hisashi Mori | Key Animation |
| Visual Effects | Saeko Ozawa | Key Animation |
| Visual Effects | Tsutomu Suzuki | Key Animation |
| Visual Effects | Koichiro Ueda | Key Animation |
| Visual Effects | Yumi Chiba | Key Animation |
| Visual Effects | Susumu Yamaguchi | Key Animation |
| Visual Effects | Masahito Yamashita | Key Animation |
| Visual Effects | Tomohisa Shimoyama | Key Animation |
| Visual Effects | Kazuo Sakai | Key Animation |
| Visual Effects | Manabu Nii | Key Animation |
| Visual Effects | Shinji Matsuda | Key Animation |
| Visual Effects | Yoshihiko Takakura | Key Animation |
| Visual Effects | Masami Otsuka | Key Animation |
| Visual Effects | Yasue Sosogi | Key Animation |
| Visual Effects | Hidetsugu Ito | Key Animation |
| Visual Effects | Yuichiro Sueyoshi | Key Animation |
| Visual Effects | Daisuke Mataga | Key Animation |
| Visual Effects | Yuka Hara | Key Animation |
| Visual Effects | Yuko Matsui | Key Animation |
| Production | Shohei Usami | Production Assistant |
| Production | Yoshinori Tanizawa | Production Assistant |
| Production | Kazuyoshi Nakamura | Production Assistant |
| Production | Takanori Okano | Production Assistant |
| Visual Effects | Masahiro Kumagai | Compositing Supervisor |
| Writing | Fujiko F. Fujio | Comic Book |
| Production | Mariko Kawanishi | Production Assistant |
| Visual Effects | Osamu Miwa | Key Animation |
| Writing | Higashi Shimizu | Writer |