身份政治是政治行为与政治文化研究的核心议题，也是政治学领域争论的热点之一。现有研究成果主要侧重对西方政治和文化背景下种族和党派问题的探讨，而对于群体身份认同的建构机制和实证理论尚待深入研究。本文以“香港观”为案例，通过具代表性的调查数据、政策文本、社交媒体数据和深度访谈等研究材料，采用综合研究方法，揭示既有文献尚未系统阐释的“他者”作用以及自我—他者互构机制，提出了“融合—疏离”分析框架，阐述了自我与他者特性以及两者互动对香港群体身份认同的互构作用，分析了香港群体身份认同危机形成的原因和影响要素。值得一提的是，传统身份政治研究大多关注精英视角，本项研究则主要从民众视角切入，以寻找问题和解决方法。本文从群体身份认同的理论基础和既有成果梳理入手，指出文献中“他者”作用和身份互构在理论和实证方面的不足，提出搭建“融合—疏离”理论分析框架，进而将该分析框架应用于香港案例的研究，回溯香港群体身份形成的历史和社会背景，尤其是内地与香港关系对香港群体身份认同的影响，通过定量研究和定性分析，从自我、他者、互构三方面对香港群体身份认同的特性和机制进行理论探索。在理论框架基础上，研究从三个方向对当代“香港观”进行了实证分析。首先，通过具代表性调查勾勒香港本地群体（“自我”）的身份特征，揭示香港群体身份认同危机的形成原因及影响要素。之后，将视角转至“他者”，通过对内地官方和民间两个层面的文本分析，梳理内地“香港观”的主要特征与塑造机制，揭示“他者”因素在群体身份认同建构中的重要作用。最后，通过对“北漂”港人的深度访谈，为论证自我—他者互构机制对群体身份认同的影响提供证据。实证研究发现，在“自我”特征方面，普遍香港市民早于五年前已对本地发展前景持悲观心态，是构成香港群体身份认同危机的主因；在“他者”因素方面，虽然发现在官方和民间涉港话语中不乏融合性质的意涵，但疏离性质却体现得较为明显；而“北漂”港人的身份认同建构受到“他者”因素的重要影响，导致疏离大于融合的建构效应，甚至出现“身份隐匿”现象。这些研究发现为“融合—疏离”分析框架提供了证据，体现出香港群体身份认同危机的复杂性以及解决这一问题的紧迫性，并为此提供了潜在解决途径。本项研究对解决香港问题具有借鉴意义，在身份政治理论研究上也具有参考价值，更为推进“一国两制”事业和香港地方治理进行了新的探索。

Identity politics is one of the core research topics of political behavior and political culture, it is also a hot issue in the field of political science. Current research results mainly focus on the issues of race identity and political partisanship in the Western political and cultural context, while the mechanism and empirical theory of group identity need to be further studied.Taking "Hong Kong Views" as the case, this study uses representative survey data, policy texts, social media data, and in-depth interviews through comprehensive research methods, in order to reveal the role of the "Others", the “Self” and their mutual construction mechanism that have not been systematically investigated in the existing literature.This research?proposes an "integration-dissociation" analytic framework to explain the characteristics of the “Others”, the “Self” and their interaction on the mutual construction of group identity in Hong Kong, analyzes the causes and influencing factors of Hong Kong group identity crisis. It is worth mentioning that most of the traditional identity politics researches stressed on the perspective of elites, while this research mainly gives attention to the public perspective.The?study is based on a systematic review of the theoretical foundations and literature of group identity, which presents the theoretical and empirical shortcomings of the role of the "Others" and mutual construction in the literature. Hence, this research proposes a theoretical and analytic framework of "integration-dissociation" for the case study of Hong Kong, tracing back the historical and social background of the formation of group identity in Hong Kong. In particular, the relationship between the Mainland and Hong Kong influenced?Hong Kong's group identity significantly. Through quantitative research and qualitative analysis, this research theoretically explores the characteristics and mechanisms of Hong Kong's group identity from three aspects, “Self”, “Others” and mutual construction.Based on the theoretical framework, the research has carried out an empirical analysis of contemporary "Hong Kong view" from three aspects. First, it outlines the characteristics of Hong Kong's local group ("Self") identity through representative surveys, and reveals the causes and influencing factors of Hong Kong's group identity crisis. Afterwards, turning the perspective to the "Others", by using text analysis of the Mainland China's governmental and non-governmental levels, it sorts out the main features and shaping mechanisms of the Mainland's "Hong Kong view", and reveals the important role of the "Others" factor in construction of group identity. Finally, through in-depth interviews with Hong Kong people who are "Beijing Drifters"(or “North drifters”), which provides evidence on the influence of Self-Other mutual construction mechanism on group identity.The empirical study finds that, in terms of "Self" characteristics, Hong Kong people have been pessimistic about the prospect of local development in general as early as five years ago in?2016, which is the main reason for the Hong Kong group identity crisis; in terms of "Others" factors, although it is found that there is no lack of integration in the official and civil discourse about Hong Kong, the dissociation and alienation is more obvious; the "Others" factor has a significant impact on the identity formation of Hong Kong people who are "Beijing drifters", resulting in dissociation more than integration, and even led to "identity invisibility". These findings provide evidence for an "integration-dissociation" analytic framework that reflects the complexity of Hong Kong's group identity crisis and the urgency of addressing it. This research has a significance reference for the resolution of Hong Kong's problems, also for theoretical studies on identity politics, as well as providing a new exploration for promoting the cause of "One Country, Two Systems" and local governance in Hong Kong.