The 1988 Britannic Assurance County Championship was the 89th officially organised running of the County Championship. Worcestershire won the Championship title. Matches played over four days were introduced to the competition this season. Each county was scheduled to play sixteen three-day matches, one against each other county, and six four-day matches. The four-day matches were played at the start and end of the season. This resulted in a total of twenty-two games for each county, a decrease of two from the number played in 1987.