The invention provides a method for utilizing multivariate data to achieve the joint calculation of the distance from a borehole to a stratum boundary in a horizontal well. The method comprises the steps of 1, collecting and preprocessing the multivariate logging data; 2, utilizing the logging data for interface identification, and automatically conducting horizon division; 3, utilizing azimuth imaging data to calculate the borehole-stratum relative inclination angle and azimuth angle at the position cross an interface, and calculating the boundary distance according to the inclination angle;4, establishing an inversion model, and calculating the borehole-boundary distance of the position away from the boundary section by section; 5, summarizing inclination angle data at the boundary andinversion layer boundary distance data of the position away from the boundary, and obtaining the borehole-boundary distance of each measurement point of the horizontal well according to nonlinear interpolation. By means of the method, the borehole-stratum boundary distance information can be obtained from the logging data, so that the method is a data processing technology urgently needed in production; meanwhile, the detection advantages of various types of logging data are fully exerted and comprehensively utilized and complement one other, and the efficiency of utilizing the logging data isimproved.