The invention discloses microsatellite quality characteristic bidirectional testing equipment. A U-shaped symmetrical inner and outer supporting frame structure is adopted; an inner supporting frame is driven to rotate around a rotating shaft by a speed-reducing mechanism and is easily positioned in vertical and horizontal directions through a positioning mechanism; and the problem of rapid coordinate conversion in a vertical state and a horizontal state through one-time hoisting is solved. The quality characteristic data in two states is tested through one-time hoisting and clamping in the field of microsatellites, the quality characteristic testing time is shortened, the testing efficiency and testing effect are improved, the safety and reliability of the quality characteristic testing are enhanced, and the labor intensity of personnel is greatly lightened. The microsatellite quality characteristic bidirectional testing equipment has a simple structure, is convenient to operate, andcan be used for quality characteristic testing of spacecrafts and other miniature equipment.