Abstract: The missions of China’s spacecraft include space science experiments, aerospace medical experiments and space technology tests. These experiments involve a large amount of data, real-time data transmissions and various work patterns. This paper proposes a general experiment platform scheme applicable to all types of experiments and tests in LEO spacecraft. This experiment platform has been verified by successful flight missions, and it is shown that it can perfectly meet the requirements of operation control, telemetering monitoring and data management for experiment tasks, without influencing the spacecraft flight safety.