[目的/意义]信息茧房“有态而无形”的概念内涵使从概念描述出发的量化方法出现了研究结论不一致、研究结果无法整合的瓶颈。由此，对信息茧房的概念进行抽象后再逐渐完善量化方法论体系的进路成为符合科学发展规律的合理选择。[方法/过程]从信息茧房形态解析这一重要问题出发，回顾总结国内外研究成果，从隐喻式概念设定、多维形态的可能性、实证研究中的生态谬误和化约主义、社交媒体用户的“行迹”无法跟踪四方面对信息茧房“有态而无形”的原因及其领域内相关问题进行梳理，解释信息茧房概念抽象的必要性。在此基础上，根
据信息茧房形成过程性特征，使用复杂网络领域知识构建信息茧房概念抽象模型，并从选择同质化、内容同质化、群体同质化三个层面解读通过复杂网络领域知识量化信息茧房的方法。[结果/结论]构建的概念抽象模型旨在依据信息茧房“有态而无形”的概念内涵，创新性实现信息茧房概念的第一次抽象，形成科学、稳定、强泛化的信息茧房量化方法。

[Purpose/significance] The conceptual connotation of the information cocoon, which is both tangible and in⁃tangible, has led to the bottleneck of inconsistent research conclusions and inability to integrate research results in quantitative methods based on conceptual descriptions. Therefore, abstracting the concept of information cocoon and gradually improving the quantitative methodology system becomes a reasonable choice that conforms to the laws of sci⁃entific development. [Method/process] Starting from the important issue of analyzing the form of information cocoons,this article reviews and summarizes the research results at home and abroad. From the perspectives of metaphorical con⁃cept setting, the possibility of multidimensional forms, ecological fallacies and reductionism in empirical research, and the inability to track the "behavior" of social media users, the reasons for the "formal but intangible" nature of informa⁃tion cocoons and related issues in the field are sorted out, and the necessity of abstracting the concept of information co⁃coons is explained. On this basis, based on the process characteristics of information cocoon formation, a conceptual ab⁃stract model of information cocoon is constructed using complex network domain knowledge, and the method of quanti⁃fying information cocoon through complex network domain knowledge is interpreted from three levels: selection homog⁃enization, content homogenization, and group homogenization. [Result/conclusion] This conceptual abstract model aims to innovatively achieve the first abstraction of the concept of information cocoon based on the connotation of the concept of "being tangible but intangible", forming a scientific, stable, and strongly generalized quantitative method for information cocoon.