The invention discloses a method for identifying a fake-licensed vehicle according to a fake-licensed vehicle identification rule base. The method comprises the steps that 1) the rule structure of the fake-licensed vehicle identification rule base is defined as Rk:If A1 intersects with A2 intersects with ...Amk Then {Dk, betak, Sk, Rk}, wherein Ai represents the ith antecedent (an antecedent factor and a value) in the kth rule, Dk represents a consequent discriminating type, betak represents the confidence, Sk represents the support degree, and Rk represents the confidence rate; 2) historical fake-licensed vehicle investigating and settling data is collected, and a base table of a fake-licensed vehicle analysis data sample is established; and 3) according to the rule structure of the rule base, a special rule generating algorithm is used to calculate and process data of the base table of fake-licensed vehicle analysis data, a fake-licensed vehicle identification rule with multiple antecedent factors is generated automatically, the fake-licensed vehicle identification rule base is established, establishment of an information system is supported, and the fake-licensed vehicle is identified automatically.