Abstract:The fairness processing problem of group student scores is discussed here. Three exercisable algorithms, average value regulation, range transformation and the combination methods, are presented. The study shows that with average value regulation, group average value equalizes overall average value, but group range differs from overall range, and probably new unfair problems occur at over upper limit, with range transformation, group range equalizes overall range, but group average value differs from overall average value; with those combination methods, group range equalizes overall range and group average value follows overall average value, with only half as many errors as in the case of range transformation method. Therefore the combination method takes the advantage over average value regulation and range transformation methods.