Substantial research results show that the magnetized water can make the cement hydration reaction more completely, so the physical and chemical properties of magnetized water in different degrees are studied in the thesis. The research starts with the physical and chemical properties of magnetized water such as the conductivity, viscosity, PH value and surface tension so on. On the basis of the study of magnetized water by the predecessors, a test about the physical and chemical properties of magnetized water has been taken based on two selected magnetized parameters, the corresponding magnetized field intensity and water flow rate. The improvement of physical and chemical properties of magnetized water on cement hydration reaction was analyzed in this issue.