A triple-purpose drinking cup comprises a casing with two ends communicated, wherein two inner cups are arranged in the casing, the casing, the two inner cups, two inner covers and two outer covers are connected through threads, and the threads for connection are characterized in that an external thread of the casing is meshed with internal threads of the inner covers, external threads of the inner covers are meshed with internal threads of the outer covers, and the internal threads of the inner covers are meshed with external threads of the inner cups. The cup can be filled with one or two kinds of drink, three use methods are supplied to people, multiple use methods and applications are realized, different uses can be realized when one cup is carried, and the requirements of different crowds and different individuals for drinking are met.