To solve the problem that the current spaceborne memory cannot support parallel storage of multi-channel high-speed data effectively, this paper proposes two methods. To satisfy the requirement of receiving high-speed payload data, this paper analyzes the throughput bottleneck of NAND Flash-based solid-state memory, and proposes a four-stage pipeline operation and bus parallel expansion scheme according to the inherent write operation characteristics. To meet the needs of parallel storing multi-channel data and the continuity of pipeline operation, this paper analyzes the deficiencies of the data cache methods which use RAM (Random access memory) and SRAM (Static Random Acess Memory), and proposes a scheduling scheme using high-speed caching and cooperative storing, which is based on SDRAM (Synchronous Dynamic Random Access Memory). Through the model simulation and the prototype function verification, we verify that the proposed scheme can effectively support parallel reception of the 4-way high-speed payload data and the autonomous scheduling storage of solid state memory, and the throughput rate of memory can reach 1.2 Gbps, which satisfies the demands for storing the multi-channel high-speed payload data on spaceborne memory in the future.