Abstract: Objective: With the development of urban planning and metro line networks, the future disassembly of metro line networks becomes inevitable. To reduce the difficulty and cost of this assignment, by investigating numerous existing metro line disassembly projects in China, the merits and shortcomings of various disassembly methods are fully taken in and analyzed, thus a new method of metro line and station design suitable for future disassembly is researched and proposed. Method: Using line level and longitudinal design software, the line planar layout and longitudinal crosssection are digitally designed. The intersection of two lines equipped with parallel interchange platform is designed, a fourtrack, doubleisland platform with various and flexible auxiliary line combinations at platform front and end is set up. Considering the vertical construction safety clearance between the front and rear elevated lines in intersecting sections, the future extension construction conditions are preserved pertaining to the directional function of turnout to facilitate disassembly. Result & Conclusion: This method of metro line and station design is applicable only when it is preserved in the planning and design stages, including parallel interchange platforms and interval vertical intersecting conditions. The proposed method can be applied to underground laying, as well as elevated or ground level laying. Results show that the proposed method can avoid damage to existing structures, prevent wasteful projects, reduce construction risks and difficulties, lower project costs, provide convenient interchange options, enable flexible operation organization, and facilitate interoperation and resource sharing within the network. It can meet the demands of both serving current passenger flow development and satisfying future urban planning adjustments, thereby generating significant social, economic, and technological benefits.