Calibration of Mars Rover’s Payloads for China’s First Mars Exploration Mission

China’s Mars rover’s payloads consist of five devices, including multispectral camera, Mars rover penetrating radar, Mars surface composition detector, Mars rover magnetometer and Mars climate station. To ensure the validity of the scientific data obtained onboard, calibration should be carried out on the ground. Through calibration, the instruments’ performance can be determined and the calibration coefficients can be obtained, which are necessary for the quantitative analysis of scientific data. The calibration contents and results are introduced.The test results show that the performance of each instrument is stable and consistent, and lay a solid foundation for achieving scientific goals.