1990 All-Japan University Baseball Championship Series

The 1990 All-Japan University Baseball Championship Series was played at Meiji-Jingu Stadium from June 7 to June 12. Champions from 9 college leagues participated in the tournament, and the other 8 spots were determined by region championships. Asia University from the Tohto University Base Ball League beat Tohoku Fukushi University from the Sendai Big-Six Universities Baseball League and won the championship.

Participating Teams

School		League	Region	All-Japan Appearances
	Tokai University Sapporo Campus	Hokkaido Universities Baseball League	Hokkaido	2
	Tohoku Fukushi University	Sendai Big-Six Universities Baseball League	Tohoku	8
	International Budo University	Chiba Prefecture University Baseball League	-	1
	Soka University	New Tokyo University Baseball League	-	3
	Yokohama College of Commerce	Kanagawa University Baseball League	-	1
	University of Tsukuba	Tokyo Metropolitan Area University Baseball League	-	1
	Asia University	Tohto University Base Ball League	-	4
	Waseda University	Tokyo Big6 Baseball League	-	7
	Fukui University of Technology	Hokuriku Universities Baseball League	Chubu	20
	Aichi Institute of Technology	Baseball Association In Aichi	-	6
	Ryukoku University	Kansai6 Baseball League	Kansai	3
	Bukkyo University	Keiji University Baseball League		1
	Nara Sangyo University	Kinki University Baseball League		3
	Kindai University, Faculty of Engineering	Hiroshima Big-Six6 Universities Baseball League	-	16
	Matsuyama University	Shikoku Universities Baseball League	Western	20
	Fukuoka University	Kyushu Big6 Baseball League	-	15
	Kyushu Kyoritsu University	Fukuoka Big6 Baseball League	Kyushu	1

Results

Round	Game	Winner	Score	Loser	Notes
1	Game 1	Nara Sangyo University	10-9	Aichi Institute of Technology
2	Game 2	Waseda University	3-2	Kindai University, Faculty of Engineering
	Game 3	Tohoku Fukushi University	6-1	Bukkyo University
	Game 4	Kyushu Kyoritsu University	7-0	Tokai University Sapporo Campus
	Game 5	International Budo University	3-2	Ryukoku University
	Game 6	Asia University	5-0	Matsuyama University
	Game 7	Fukui University of Technology	3-0	Fukuoka University
	Game 8	University of Tsukuba	3-2	Yokohama College of Commerce
	Game 9	Soka University	7-5	Aichi Institute of Technology
3	Game 10	Tohoku Fukushi University	1-0	Waseda University
	Game 11	International Budo University	3-2	Kyushu Kyoritsu University
	Game 12	Asia University	3-2	Fukui University of Technology
	Game 13	Soka University	6-5	University of Tsukuba
4	Game 14	Tohoku Fukushi University	9-0	International Budo University
	Game 15	Asia University	3-0	Soka University
5	Game 17	Asia University	2-1	Tohoku Fukushi University