经营者通过价格违法行为所取得违法所得，是价格主管部门认定经营者价格违法行为的事实和情节，并给予相应行政处罚的重要证据。因此，价格主管部门在对有价格违法行为的经营者作出行政处罚决定之前。必须准确地认定经营者有无违法所得。《价格法》第四十一条规定。“经营者因 The illegal income obtained by the operator through price unlawful acts is the fact and the plot of the price administrative department that the price of the operator is illegitimate and gives important evidences of the corresponding administrative punishment. Therefore, the price department in charge of price violations before making the administrative penalty decision. The operator must be accurately identified whether the illegal gains. Article 41 of the “Price Law”. "Operator due