The invention discloses a switched reluctance motor linkage non-linear modeling method and belongs to the switched reluctance motor linkage modeling technology field. According to the method, fitting of the linkage data of a switched reluctance motor at several special positions is carried out through a least squares to acquire a fitting coefficient matrix A, fitting of linkage and positions is accomplished, and a relationship between linkage and currents is converted into a relationship between the fitting coefficient matrix A and the currents; through analyzing the relationship between linkage and the currents, a relationship between elements and the currents of the five-order polynomial fitting coefficient matrix A is employed, an error correction coefficient rp is introduced into a position interval between a smallest induction position and a largest induction position to correct errors of all the currents, and a switched reluctance motor linkage non-linear model is established. Through the method, accuracy of the linkage model is improved, and a good engineering application value is realized.