The 1990 Challenge Tour was the second season of the Challenge Tour, the official development tour to the European Tour.
The following table lists official events during the 1990 season.
The following events were sanctioned by the Challenge Tour, but did not carry official money, wins were still official however.
The rankings were based on prize money won during the season, calculated in Pound sterling. The top five players on the rankings earned status to play on the 1991 European Tour (Volvo Tour).