以地球科学发展的新近研究成果为基础，讨论了地壳中流体与强震活动的关系，包括上地壳热流体对强震活动的影响、中地壳流体对强震活动的控制、断裂带中古流体活动与地震活动旋回的关系，从而提出由地壳流体分布与活动特征来判定强震危险性的新途径。 Based on the recent research results of geosciences, the relationship between the fluid in the crust and strong earthquakes is discussed, including the influence of the upper crust thermal fluids on the strong earthquakes, the control of the strong earthquakes by the crustal fluids and the paleo-fluid activities in the fault zones And the relationship between the seismic activity and cycle, so as to propose a new way to determine the danger of strong earthquakes by the distribution and activity characteristics of the crustal fluid.