Abstract This study takes college students as an example and applies DCM to investigate the customer’s behavior of choosing a tariff plan of telecom operators. The result shows that NLM has more advantages than MNL in explaining the customer’s behavior of choosing a tariff plan; to a customer, the brand has more influence on choosing China Mobile or China Unicom than on choosing China Telecom, the fee that should be paid has more influence on choosing a tariff plan of China Unicom or China Telecom than on choosing the one of China Mobile; the property of high substitutability exists between the tariff plans of China Unicom and the ones of the other two telecom operators.