Award Years for Seiun Award
| 1970's: | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 |
| 1980's: | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 |
| 1990's: | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 |
| 2000's: | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 |
| 2010's: | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 |
| Best Japanese Long Story | ||
| Win |
霊長類南へ?Reichōrui Minami e
|
筒井康隆?Tsutsui Yasutaka
つつい やすたか |
| Best Japanese Short Story | ||
| Win |
フル・ネルソン?Furu Neruson
|
筒井康隆?Tsutsui Yasutaka
つつい やすたか |
| Best Translated Long Story | ||
| Win |
結晶世界?Kesshō Sekai
(translation of The Crystal World)
Kesshou Sekai |
J・G・バラード?J. G. Barādo
|
| Best Translated Short Story | ||
| Win |
リスの檻?リスのおり
(translation of The Squirrel Cage)
Risu no Ori |
トーマス・M・ディッシュ?Tōmasu M. Disshu
Toomasu M. Disshu |
| Special Award | ||
| --- No Award Given This Year ------- | ||
| * | ---- | |