Carrier RCS modular layout method capable of being rapidly detected and maintained

The invention relates to a vehicle RCS modular layout method capable of being rapidly detected and maintained, and belongs to the field of aerospace transportation and the technical field of reusable heaven and earth back-and-forth transportation. Determining the structural classification of the RCS, including an RCS engine, an RCS tank and a diaphragm valve; the RCS engine is modularly designed into an engine module, and layout design is carried out; a portable out-cabin butt joint layout of the engine module and the cabin body is designed; designing a portable out-cabin butt joint layout of the engine module and the in-cabin structure; the RCS storage tank and the diaphragm valve are modularly designed into a storage tank module; a portable out-cabin butt joint layout of the storage box module, the cabin body and the in-cabin structure is designed; a skin cover plate is additionally arranged at the position, corresponding to the engine module and the storage box module, of the outer wall of the cabin body t