This competition was held at Shek Kip Mei Park, from 12 to 13 December 2009.
(55 kg)
{{DetailsLink|Judo at the 2009 East Asian Games - Men's 55 kg}} | {{flagathlete|Yu Kin-Ting|HKG}} | {{flagathlete|Wang Guogui|CHN}} | Hoi Ka-Fong|MAC}} |
| none |
Extra-lightweight (60 kg)
{{DetailsLink|Judo at the 2009 East Asian Games - Men's 60 kg}} | {{flagathlete|Kim Kyong-Jin|PRK}} | {{flagathlete|Daisuke Asano|JPN}} | Bayar Dagvadorj|MGL}} |
| Li Hui|CHN}} |
Half-lightweight (66 kg)
{{DetailsLink|Judo at the 2009 East Asian Games - Men's 66 kg}} | {{flagathlete|Musashi Ogura|JPN}} | {{flagathlete|Ri Chol Ryong|PRK}} | Cho Jun-Ho|KOR}} |
| Liu Renwang|CHN}} |
Lightweight (73 kg)
{{DetailsLink|Judo at the 2009 East Asian Games - Men's 73 kg}} | {{flagathlete|Hiroyuki Akimoto|JPN}} | {{flagathlete|Si Rijigawa|CHN}} | Kim Won-Jung|KOR}} |
| Kim Chol-Su|PRK}} |
Half-middleweight (81 kg)
{{DetailsLink|Judo at the 2009 East Asian Games - Men's 81 kg}} | {{flagathlete|Song Dae-Nam|KOR}} | {{flagathlete|Li Yewen|CHN}} | Yasuhiro Ebi|JPN}} |
| Gan Tuvshinjargal|MGL}} |
Middleweight (90 kg)
{{DetailsLink|Judo at the 2009 East Asian Games - Men's 90 kg}} | {{flagathlete|Masashi Nishiyama|JPN}} | {{flagathlete|Pak Song Il|PRK}} | Kwon Young-Woo|KOR}} |
| E. Erdenebileg|MGL}} |
Half-heavyweight (100 kg)
{{DetailsLink|Judo at the 2009 East Asian Games - Men's 100 kg}} | {{flagathlete|Hiroka Oba Fukumaya|JPN}} | {{flagathlete|Batsuuri Bat-Orshikh|MGL}} | Shao Ning|CHN}} |
| Sin Kyeong-Seob|KOR}} |
Heavyweight (+100 kg)
{{DetailsLink|Judo at the 2009 East Asian Games - Men's +100 kg}} | {{flagathlete|Yohei Takai|JPN}} | {{flagathlete|Liu Jian|CHN}} | N. Tüvshinbayar|MGL}} |
| Kim Soo-Whan|KOR}} |
Openweight
{{DetailsLink|Judo at the 2009 East Asian Games - Men's open category}} | {{flagathlete|Kim Soo-Whan|KOR}} | {{flagathlete|Yohei Takai|JPN}} | Liu Jian|CHN}} |
| Batsuuri Bat-Orshikh|MGL}} |
Extra-lightweight (45 kg)
{{DetailsLink|Judo at the 2009 East Asian Games - Women's 45 kg}} | {{flagathlete|Xie Shishi|CHN}} | {{flagathlete|Leong Siu-Pou|MAC}} | Lui Wing-Yin|HKG}} |
| none |
(48 kg)
{{DetailsLink|Judo at the 2009 East Asian Games - Women's 48 kg}} | {{flagathlete|Haruna Asami|JPN}} | {{flagathlete|Pak Ok-Song|PRK}} | Ye Meixin|CHN}} |
| B. Baljinnyam|MGL}} |
Half-lightweight (52 kg)
{{DetailsLink|Judo at the 2009 East Asian Games - Women's 52 kg}} | {{flagathlete|Chiho Kagaya|JPN}} | {{flagathlete|Choi Keum-Mai|KOR}} | Zhu Ang|CHN}} |
| Vong Chi-Leng|MAC}} |
Lightweight (57 kg)
{{DetailsLink|Judo at the 2009 East Asian Games - Women's 57 kg}} | {{flagathlete|Nae Udaka|JPN}} | {{flagathlete|Rim Yun-Hui|PRK}} | Park Hyo-Ju|KOR}} |
| Lien Chen-ling|TPE}} |
Half-middleweight (63 kg)
{{DetailsLink|Judo at the 2009 East Asian Games - Women's 63 kg}} | {{flagathlete|Miki Tanaka|JPN}} | {{flagathlete|Joung Da-Woon|KOR}} | Won Ok-Im|PRK}} |
| Chen Chia-Hsin|TPE}} |
Middleweight (70 kg)
{{DetailsLink|Judo at the 2009 East Asian Games - Women's 70 kg}} | {{flagathlete|Choi Mi-Young|KOR}} | {{flagathlete|Dou Shumei|CHN}} | Hyon Jong-Hui|PRK}} |
| N. Tsend-Aylish|MGL|MGL}} |
Half-heavyweight (78 kg)
{{DetailsLink|Judo at the 2009 East Asian Games - Women's 78 kg}} | {{flagathlete|Hitomi Ikeda|JPN}} | {{flagathlete|Park Jong-Won|KOR}} | Turbat Baasanjav|MGL}} |
| none |
Middleweight (+78 kg)
{{DetailsLink|Judo at the 2009 East Asian Games - Women's +78 kg}} | {{flagathlete|Qin Qian|CHN}} | {{flagathlete|Kim Na-Young|KOR}} | Mai Tateyama|JPN}} |
| Tsai Hsiu-Ya|TPE}} |
Openweight
{{DetailsLink|Judo at the 2009 East Asian Games - Women's open category}} | {{flagathlete|Qin Qian|CHN}} | {{flagathlete|N. Tsend-Aylish|MGL}} | Kim Na-Young|KOR}} |
| Tsai Hsiu-Ya|TPE}} |