为应对传统超大型浮船坞建造成本高、灵活性不足且难以保障航空母舰等大型舰艇维修需求的问题，本文提出一种基于超大型浮式结构物理念的模块化自航式多功能海上浮动基地结构设计方案。该平台由多个具备独立举升、自航与动态定位功能的小型浮船坞模块组成，可根据任务需求灵活组合为超大型浮式作业平台，具备综合保障能力。详细阐述了其整体架构、举力设计、动力配置、引船系统及结构连接方案，并通过水弹性响应分析与横向强度校核验证了其结构安全性与作业可行性。该设计为未来移动式海上基地的工程实现与教育实践提供了重要参考。

To address the issues—high construction costs, limited flexibility, and difficulty in meeting the maintenance demands of large naval vessels such as aircraft carriers—associated with traditional ultra-large floating docks, this paper proposes a modular, self-propelled, multi-functional offshore floating-base structure based on the concept of very large floating structures (VLFS). This platform consists of multiple small floating dock modules, each equipped with its own lifting, self-propulsion and dynamic-positioning systems. These modules can be flexibly combined according to mission requirements to form an ultra-large floating operation platform with comprehensive support capabilities. This paper elaborates on its overall architecture, buoyancy design, power configuration, ship guidance system, and structural connection scheme. Furthermore, its structural safety and operational feasibility are validated by means of hydroelastic-response analysis and transverse-strength assessment. This design provides an important reference for the future engineering implementation and educational application of mobile offshore bases.