One of the important reasons for the consumer's degree of trust is not high, is that consumers are hard to obtain the information generated by the corresponding safety food certification information asymmetry. This kind of information asymmetry arises because the cognitive ability to consumer overvalued, certification bodies lack of credibility, administrative organs of local protectionism, and the media reported that the distortion and food enterprise and consumer communication channels of the building neglect problem on existence. Therefore, must be taken to strengthen the publicity and education of consumers, strengthen the management and supervision of certification bodies to the establishment of administrative organs to the public timely disclosure of regulatory information system, media reports on the established corresponding imputation system and build consumer channel through the legal channels with other interested parties and other measures, in order to ensure the construction of the exchange of information consumer safety food trust evaluation mechanism.