Stray current analysis and early warning working method

The invention provides a stray current analysis early warning working method which comprises the following steps: S1, arranging a cathode protection device between parallel pipelines, and installing a detection pile; s2, a corresponding incidence matrix is obtained through calculation, the incidence matrix is processed and calculated to obtain a corresponding decoupling matrix, and a first pipeline stray current matrix and a second pipeline stray current matrix are obtained through processing of the decoupling matrix; s3, a simulation calibration module is arranged in the system, error calculation is carried out through the module, and corrected stray current matrix data are obtained; s4, a fulcrum close to the damaged part of the insulating layer is screened out; and S5, calculating the specific damaged positions of the insulating layers of the first pipeline and the second pipeline, and arranging the specific damaged positions into specific early warning data through a system to control an early warning dev