In order to improve the utilization rate of aeolian sand,this article aims to study the influence of calcium carbonate whiskers with different volume content on the compressive and split tensile strength of aeolian sand concrete.Observe the bonding morphology of calcium carbonate whiskers and cement paste from a microscopic point of view through scanning electron microscopy and nuclear magnetic resonance,and analyze its mechanism of action, based on the analysis of the test results and put forward the theoretical relationship between compressive strength, split tensile strength and curing age. The test results show that adding an appropriate amount of calcium carbonate whisker can effectively improve the pore structure and mechanical properties of aeolian sand concrete. When the aeolian sand content is 60% ,The optimum volume content of calcium carbonate whisker for compressive strength and splitting tensile strength is 0.15% and 0.2% respectively. The proposed theoretical model is in good agreement with the experimental data, and can better predict the strength value under age.