The 1997–98 Sussex County Football League season was the 73rd in the history of Sussex County Football League a football competition in England.[1] [2]
| Competition: | Sussex County Football League Division One |
| Season: | 1997–98 |
| Winners: | Burgess Hill Town |
| Relegated: | Mile Oak Peacehaven & Telscombe Arundel |
| Matches: | 380 |
| Total Goals: | 1287 |
| Prevseason: | 1996–97 |
| Nextseason: | 1998–99 |
Division One featured 17 clubs which competed in the division last season, along with three new clubs, promoted from Division Two:
| Competition: | Sussex County Football League Division Two |
| Season: | 1997–98 |
| Winners: | East Preston |
| Promoted: | East Preston Eastbourne United Broadbridge Heath |
| Relegated: | Midhurst & Easebourne Bexhill Town |
| Matches: | 306 |
| Total Goals: | 1138 |
| Prevseason: | 1996–97 |
| Nextseason: | 1998–99 |
Division Two featured 13 clubs which competed in the division last season, along with five new clubs.
Also, East Grinstead changed name to East Grinstead Town.
| Competition: | Sussex County Football League Division Three |
| Season: | 1997–98 |
| Winners: | Lingfield |
| Promoted: | Lingfield Storrington |
| Relegated: | Bosham |
| Matches: | 240 |
| Total Goals: | 851 |
| Prevseason: | 1996–97 |
| Nextseason: | 1998–99 |
Division Three featured twelve clubs which competed in the division last season, along with four new clubs:
Also, Sun Alliance changed name to Royal Sun Alliance.