The invention discloses a measuring method capable of simulating lunar soil mechanical properties in low-gravity environment. According to the method, a special low-gravity environment simulation device is used, through an inclined test table, low-gravity environment is simulated in component force directions, and various component forces generated in the inclination process are related to the inclination angle; in the simulation process, the force-bearing condition inside the soil mass is detected through a granular mixture force distribution test, so that the detection is taken as a basic test of the measuring test for simulating the lunar soil mechanical properties; the method is used for evaluating mechanical property parameters of the simulated lunar soil in a 1g of gravity field and a low-gravity field, wherein the parameters include subsidence index n, cohesion deformation modulus KC, friction deformation modulus k phi, internal friction angle phi, cohesion c, and cone index CI value; and the parameters can be obtained through a pressure-bearing characteristic test, a shear characteristic test and a penetration characteristic test for simulating lunar soil. According to the measuring method, the special low-gravity environment simulation device is utilized, and the test of simulating soil mechanical parameters in the 1g of ground gravity environment and the low-gravity environment can be finished simultaneously, so that the differences of the mechanical properties of the lunar soil in different gravity fields can be comparatively analyzed, and the interaction relation of soil machines in deep space gravity environment can be revealed.