Abstract: Addressing the application requirements of integrated working cabin in FPSO underwater detection,the three- dimensional model of the integrated working cabin is established through SolidWorks software. The structure of the integrated working cabin is designed and analyzed according to the equipment distribution,and the stress-strain of the complex stress position of the integrated working cabin base is analyzed through SolidWorks Simulation to optimize the base design. The calculation results show that the impact of the crane load on the base is mainly reflected in the contact surface between the bottom plate and the bottom beam. The stress,displacement and strain analysis effectively proves the stress difference of different structures. The optimal design of the structure can evenly distribute the load of the crane on the base and reduce the local ultimate force. The optimized design scheme proposed in this study has practical guiding significance for the application of the integrated working cabin in the marine complex environment.

Key words: SolidWorks, stress-strain, integrated working cabin, base