：数字孪生技术为实现图书馆全周期管理与信息物理融合提供了一种全新的策略与方法。文章提出了数字孪生图书馆五维模型，围绕全周期管理理念对其运行机理、体系架构、关键技术、协同驱动框架及其数字孪生模型构建等进行了分析，并在理论基础上，对相应的应用情境进行了分析。研究认为：数字孪生图书馆主要由图书馆物理实体、数字孪生模型、数字孪生服务体系、孪生大数据与各部分间连接等五个部分组成；其全周期管理主要由知识服务生命周期环、数字孪生模型周期环和知识服务内容周期环等三个环组成。

Digital twin technology provides a new strategy and method for the realization of the integration of library full cycle management and Information Physics. This paper puts forward the five-dimensional model of digital twin library, analyzes its operation mechanism, architecture, key technology, collaborative driving framework and digital twin model construction around the concept of full cycle management, and analyzes the corresponding application situation on the basis of theory. The research shows that the digital twin library is mainly composed of five parts: the physical entity of the library, the digital twin model, the digital twin service system, the connection between the twin big data and each part; its full cycle management is mainly composed of three parts: the life cycle of knowledge service, the cycle of digital twin model and the cycle of knowledge service content.