Cognitive construction is of scientific spirit if formed through structure-function analysis and deduction method,it is concluded that scientific spirit is an important content of scientific literacy/scientific popularization,including universality,commonality,self-interest,conditional doubt and other internal norms.Scientific and technological knowledge,scientific methods,and scientific ideas are the carriers of scientific spirit which is a bioethics with dual attributes of science and humanity,forming an"inverted pyramid"cognitive structure of scientific spirit.The science popularization exhibition narrative is explored corresponding to scientific spirit's constitutes,carriers,attributes and essence,to lay a theoretical foundation and provide conceptual guidance for promoting the dissemination and popularization of the scientific spirit through science exhibitions/exhibits.