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Activation technologies such as magnetization and deelectronation can significantly improve the salt leaching efficiency of irrigation water. In order to clarify the influence mechanism of magnetization intensity on the soil water and salt transport of magnetizationdeelectronic activation water, the effect of magnetization intensity on the soil water and salt transport of magnetizationdeelectronic activation water was studied by a onedimensional vertical soil column infiltration test, which was carried out at different magnetization intensities (0, 0.1T, 0.2T, 0.4T and 0.8T) magnetizationdeelectronic activation water. The results showed that the magnetizationdeelectronic activation water infiltration could improve the soil water infiltration capacity and salt leaching efficiency, and it was closely related to the magnetization intensity, the soil water infiltration capacity and salt leaching efficiency showed a quadratic function relationship which was increased first and then decreased with the increase of magnetization intensity. Meanwhile, the moisture absorption rate S and the magnetization intensity H also showed a good quadratic function relationship. Through the analysis of test data and the infiltration model parameters, it was found that when the magnetization intensity was about 0.4T, the cumulative infiltration corresponding to the magnetizationdeelectronic activation water infiltration was the largest, the infiltration time was the shortest, the soil water content was the largest, the salt content was the smallest, and the desalination effect was the best. Therefore, 0.4T can be used as the optimal magnetization intensity of magnetizationdeelectronic activation water.