文章从大数据背景下人民"知情权"的角度切入,从比较法的视野就中国政府现有信息公开制度进行分析,并在借鉴日本的成熟经验后主张应当在信息公开立法的目的中引入知情权,并在保障信息公开请求权的基础上扩张信息公开请求权人的主体范围,完善信息公开载体的数据化管理,再辅以对"知情权"的相对限制性规定,从而将政府信息公开的管控形态从传统的以行政行为为主导的封闭性信息支配模式,逐渐过渡为以保障知情权为主导的开放型信息支配模式,以应对大数据时代的需求.","From the right-to-know perspective,the paper compares the Chinese and Japanese govement information disclosure system under the background of big data.It concludes that the Chinese govement should lea from the Japanese model that the govement information disclosure system should be legalized based on the right-to-know principle.It claims that the scope of subjects should be enlarged under the protection of their right of claim for govement information disclosure,with the improvement on data management and restriction rules on right-to-know.Therefore,the traditional management of govement information disclosure system in a closed administrative way can be gradually reformed to an open information-oriented one,aiming at protecting right-to-know to keep up with the era of big data.