The 1977–78 Sussex County Football League season was the 53rd in the history of Sussex County Football League a football competition in England.
Division One
Division One featured 14 clubs which competed in the division last season, along with two new clubs, promoted from Division Two: Arundel Shoreham
League table
Division Two
Division Two featured twelve clubs which competed in the division last season, along with three new clubs: Albion United, joined from the East Sussex League Three Bridges, relegated from Division One Whitehawk, relegated from Division One
League table
References