Initial crustal stress field inversion method considering strike-slip fracture activity influence

The invention discloses an initial crustal stress field inversion method considering strike-slip fracture activity influence, and relates to the field of geological investigation, comprising: acquiring topographic and geological data and a crustal stress measurement result of a to-be-analyzed area; the method comprises the following steps: establishing a three-dimensional finite element model simulating a fault zone according to topographic and geological data; transforming the coordinate system of the crustal stress measurement result; setting boundary conditions of the three-dimensional finite element model according to a crustal stress measurement result after coordinate system transformation; and carrying out regression analysis on the three-dimensional finite element model through a multiple regression method, and checking a regression effect through significance checking calculation to obtain an initial crustal stress field inversion result. The method is suitable for an engineering rock mass area conta