数字囤积行为（Digital Hoarding Behavior, DHB）最初被定义为用户对数字内容的失控积累，即对数字资源的过度收纳或占有，该行为会在一定程度上导致压力和混乱。随着信息技术的迅猛发展和网络应用的普及，数字囤积已经演变为一种普遍存在的网络行为模式，反映出用户对于特定信息的高度重视以及对未来需求的预期。为深入理解并有效引导这一行为，探究其内在形成机理尤为重要，包括识别信息积累行为背后的心理动因以及分析此种行为如何作用于个体的社会化自我表达。

本文首先围绕数字囤积的概念与特征、动机、测量方式进行文献综述。其次，借鉴已有研究成果，结合心理所有权理论和技术接受模型，构建内部动因视角下数字囤积行为的形成机理模型，以工具性和情感性价值感知为自变量，心理所有权为中介变量，数字囤积行为为因变量，同时探究技术熟练度在心理所有权影响数字囤积行为过程中发挥的调节作用。本文采用问卷调查的方法来验证研究假设。结果表明，各要素之间呈现出显著的相关关系，同时心理所有权在工具性和情感性价值感知影响数字囤积行为过程中起到部分中介作用。此外，通过基于中介的调节效应检验结果可知，技术熟练度也起到显著的正向调节作用。本文进一步通过实证研究证明，具有不同实物囤积习惯的人在数字囤积行为的表现上不存在显著差异，即数字囤积行为更多受到个体对于特定内容的价值感知影响，而非从传统的囤积行为转化而来。

基于实证研究结果，本文对于如何正确引导数字囤积行为提出建议，从用户个体、社交媒体平台方以及整体信息环境三个维度进行分析。用户个体层面着重于提高个人信息管理能力和自我觉知性，社交媒体平台方面则需优化其信息分类、存储及推荐机制，以降低信息过载和促进信息的有效利用，整体信息环境应考虑人与技术的协同关系，量化自我的方法不仅有助于个体实现自我优化和提升，也促进更高效、有序的数字信息环境的建立。

Digital Hoarding Behavior (DHB) was initially defined as the uncontrolled accumulation of digital content by users, i.e., excessive storage or possession of digital resources, which can lead to stress and confusion to a certain extent. With the rapid development of information technology and the popularity of network applications, digital hoarding has evolved into a pervasive network behaviour pattern, reflecting the high value that users place on specific information and their anticipation of future needs. In order to better understand and effectively guide this behaviour, it is important to explore its underlying mechanisms, including identifying the psychological motivations behind information accumulation and analysing how this behaviour plays a role in individuals' social self-expression.

This paper firstly conducts a literature review around the concept and characteristics, motivation, and measurement of digital hoarding. Secondly, it draws on existing research results and combines psychological ownership theory and technology acceptance model to construct a mechanism model for the formation of digital hoarding behaviours under the perspective of internal motivation, with instrumental and emotional value perception as the independent variables, psychological ownership as the mediator variable, and digital hoarding behaviours as the dependent variable, and at the same time, it explores the moderating role that technological proficiency plays in the process of psychological ownership's influence on digital hoarding behaviours. This paper adopts the method of questionnaire survey to test the research hypotheses. The results show that there is a significant correlation between the elements, while psychological ownership plays a partially mediating role in the process of instrumental and emotional value perception influencing digital hoarding behaviour. In addition, the results of the mediator-based moderating effect test show that technological proficiency also plays a significant positive moderating role. This paper further demonstrates through empirical research that there is no significant difference in the performance of digital hoarding behaviours among people with different physical hoarding habits, i.e., digital hoarding behaviours are more influenced by individuals' value perceptions of specific contents rather than transformed from traditional hoarding behaviours.

Based on the results of the empirical study, this paper proposes suggestions on how to correctly guide digital hoarding behaviours, analysing the three dimensions of individual users, social media platforms and the overall information environment. Individual users focus on improving their information management ability and self-awareness, social media platforms need to optimise their information classification, storage and recommendation mechanisms to reduce information overload and promote the effective use of information, and the overall information environment should take into account the synergistic relationship between people and technology, and the quantified-self approach will not only help individuals to achieve self-optimisation and enhancement, but will also promote the establishment of a more efficient and orderly digital information environment. The quantified self approach not only helps individuals to achieve self-optimisation and improvement, but also promotes the establishment of a more efficient and orderly digital information environment.