本文以北京奥运会为问卷调查背景,考察了“80后”和“80前”在先公后私和公共参与的差异以及代际对先公后私和公共参与关系的影响。研究发现,“80后”在公私观念、公共参与方面具有自己独特的特点;代际在公私观念对公共参与的影响中起着调节作用。 Taking the Beijing Olympic Games as the background of the questionnaire survey, this paper examines the differences between private and public participation after the 1980s and before the 1980s and the influence of generationalism on the relationship between the first public office and the private parties and public participation. The study found that “80 ” has its own unique characteristics in the concept of public and private, public participation; intergenerational play a regulatory role in the impact of public-private ideas on public participation.