In order to explore the durability of MICP technology to improve the durability of aeolian sandy soil materials, 0.08 % polymer absorbent resin ( MICP + A ) and 0.37 % xanthan gum ( MICP + B ) were used to improve the traditional MICP materials.The microstructure of different cycles of high and low temperature cycle and ultraviolet irradiation was studied by nuclear magnetic resonance technology, and the durability of mineralized sandy soil materials was investigated.The results show that the porosity of both MICP+A and MICP+B materials increases with the increase of cycling cycles.In 20 cycles of high and low temperature cycling tests and 15 cycles of ultraviolet irradiation tests, the MICP+A material showed good stability, and the porosity increment decreased by about 1.8 times and 1.1 times, respectively, compared with the conventional MICP material.Under high and low temperature cycling and UV irradiation, the crystal structure of calcium carbonate was altered and the percentage of medium-sized pores in the soil increased, causing the 2nd peak of the T2 spectra of all three materials to be higher than the pre-test peak.The test shows that thepolymer water-absorbing resin can improve the stability performance of the traditional MICP specimens, and this study provides a basic experimental basis for the engineering application of microbial mineralized geotechnical materials in the treatment of desert areas.