［］Aerospace solid-state storage to store the satellite telemetry data and remote sensing payload data, its reliability relates to the success or failure of the spacecraft mission. Adopted the classification reliability design, this paper put forward a design of highly reliable space solid-state storage, use of redundancy, fault detection and isolation, and error correction coding technology, the reliability of the solid-state storage will be increased to 0.9962 at the end of 8 years, meet the demand of space application.