With the increasing amount of satellite images and communication payload data，higher requirements have been put forward for the storage capacity，recording and playback speed，and control time accuracy of space borne information systems.In this paper，a design method for a high-capacity spaceborne storage module is proposed.The overall system scheme of the storage module is elaborated.The expansion of storage capacity is achieved through the daughter boards and carrier boards，by which the storage capacity reaches 192 Tbit.The high-speed data exchange within the module is achieved through the internal PCIe inter face，by which the module supports up to 6 storage daughter cards.The external high-speed data transmission is achieved through the SRIO high-speed serial data and Ethernet，by which the recording and playback speed reaches 40 Gbit/s.The information is transmitted with high reliability，real-time，and efficiency through the time-triggered Ethernet.According to the requirements of the SpaceVPX architecture，the mechanical and electrical interfaces of the storage module are designed uniformly.The power and clock requirements of the entire system are analyzed，and the detailed design methods are presented.This article provides testing verification methods and results for the file management capability and record playback of storage modules，and the proposed method has significantly improved the storage capacity，recording and playback capabilities，and reliability compared with traditional satellite information systems.