Albums
| # | Title | Released |
| 01 | First Time | 1998.12.23 |
| 02 | Second Morning | 1999.07.28 |
| 03 | 3rd Love Paradise | 2000.03.29 |
| 04 | 4th Ikimasshoi! | 2002.03.27 |
| 05 | No. 5 | 2003.03.26 |
| 06 | Ai no Dai 6 Kan | 2004.12.08 |
| 07 | Rainbow 7 | 2006.02.15 |
| 08 | SEXY 8 BEAT | 2007.03.21 |
| 09 | Platinum 9 DISC | 2009.03.18 |
Mini Albums
| # | Title | Released |
| 01 | 7.5 Fuyu Fuyu Morning Musume. Mini! | 2006.12.13 |
Cover Albums
| # | Title | Released |
| 01 | Cover You | 2008.11.26 |
