Japan FA will field U21 side in Asian Games 2018.

Japan will play against Nepal in the opening match on August 14. They will play against Pakistan on August 16 and against Vietnam on August 18.

GK
1　KOJIMA Ryosuke (Waseda University)
12　OBI Powell Obinna (Ryutsu Keizai University)

DF
4　ITAKURA Kou (Vegalta Sendai)
20　TATSUTA Yugo (Shimizu S-Pulse)
7　HARA Teruki (Albirex Niigata)
5　SUGIOKA Daiki (Shonan Bellmare)
3　OKAZAKI Makoto (F.C. Tokyo)

MF
10　MIYOSHI Koji (Hokkaido Consadole Sapporo)
2　NAGANUMA Yoichi (FC Gifu)
17　KAMIYA Yuta (Ehime FC)
8　MITOMA Kaoru (University of Tsukuba)
6　HATSUSE Ryo (Gamba Osaka)
11　ENDO Keita (Yokohama F・Marinos)
19　FUNAKI Kakeru(Cerezo Osaka)
13　IWASAKI Yuto (Kyoto Sanga F.C.)
14　MATSUMOTO Taishi (Sanfrecce Hiroshima)
16　WATANABE Kouta (Tokyo Verdy)

FW
18　MAEDA Daizen (Matsumoto Yamaga Football Club)
9　HATATE Reo (Juntendo University)
15　UEDA Ayase (Hosei University)

Team Leader: YAMAMOTO Masakuni (JFA Technical Committee)
Coach: MORIYASU Hajime (JFA Naitonal Coaching Staff)
Assistant Coach: YOKOUCHI Akinobu (JFA Naitonal Coaching Staff)
Assistant Coach: WADA Ichiro (JFA Naitonal Coaching Staff)
GK Coach: SHIMODA Takashi (JFA Naitonal Coaching Staff)
Physical Coach: MATSUMOTO Ryoichi (JFA Naitonal Coaching Staff)