不公平定价问题、掠夺性定价问题、价格歧视问题是人们常见的市场上不正当定价现象,也是反垄断法律规制的重要内容。在反垄断规制下认定不公平定价,应满足有明晰的定义、有可操作性、有法律的确定性与可预见性、有助于增进社会福利四个条件,通过对企业现在与过去价格的纵向比较,企业价格与竞争企业价格的横向比较,全方位进行认定,确保不公平定价认定结果的公正性。对横向纵向综合比较的方法应用,还需要通过从立法上予以完善、从执法标准上进行细化、增加相关司法解释等,不断提升我国反垄断规制下的不公平定价认定水平。 The problems of unfair pricing, predatory pricing and price discrimination are common phenomenon of unfair pricing on the market and also an important part of antitrust legal regulation. Under the antitrust regulation, unfair pricing should meet the definition of a clear, operable, legal certainty and predictability, contribute to the promotion of social welfare, the four conditions, through the current and past prices of enterprises By vertical comparison, the horizontal comparison between the enterprise price and the price of the competing enterprise is determined in all aspects to ensure the fairness of the result of the unfair pricing. The application of the method of horizontal and vertical comprehensive comparison also needs to improve the level of unfair pricing under the antitrust regulation of our country through improving the legislation, refining the law enforcement standards and increasing relevant judicial interpretations.