本文在界定非正规科学教育的基础之上,归纳出了非正规科学教育的呈现形式、特性,并以美国为例介绍非正规科学教育的支持体系。非正规科学教育有三种呈现形式:隐含在日常生活当中、设计在特定环境里面、布局于主题活动之内。非正规科学教育的参与对象具有自愿性,参与内容具有选择性。非正规科学教育以科研相关机构为重要支撑力量。 Based on the definition of informal science education, this paper summarizes the forms and characteristics of informal science education and introduces the support system of informal science education in the United States. Informal science education has three forms of presentation: implicit in everyday life, designed in a particular context, and laid out within thematic activities. The participants in informal science education are voluntary and the content of participation is selective. Informal science education to research institutions as an important supporting force.