Given the importance of detecting the distribution and content of water ice in the permanent shadow area of the moon, a ground simulation test platform for lunar water-ice in-situ detection is established, and then the ground whole-process simulation tests are carried out on the basis of the test platform. The ground simulation test platform includes a lunar soil preparation system, a vacuum cryogenic sample transfer and storage system, a simulation chamber, and a simulation lunar soil in-situ analysis system. The simulation test results show that under the conditions of an ambient temperature of -70 ℃ and a transfer time of 10 min, the water loss of the simulated lunar soil is less than 1.1%. In addition, the water vapor content of simulated lunar soils with three different water contents of 0.001, 0.020 and 0.050 has been measured, and the values of the water vapor pressure are 39.3, 620.1 and 1273.2 Pa, respectively. This platform can provide strong support for ground simulation, parameter calibration, in-orbit data analysis and inversion of the Chang'E-7 lunar polar region water-ice exploration mission, and will serve the subsequent lunar research stations and other major tasks.