This paper deals with an advance in a new method applicable to the evalua-tion of uranium resources in ore--forming faults of different orders in granite areasof South China--The evaluation method for uranium ore--forming potentiality infaults, which is based on the metallogenetic model and mathematical model ofgranite-type uranium deposits in South China. Since the emphasis of the methodis placed on faults, it has the advantages of doing less work and yielding goodresults. The example in the paper indicates clearly that this method used inevaluating uranium resources in granite areas of South China can yield betterresults than other methods.