The newly-developed "routine d.c. 2-dimensional interactive inversion software system" was used to per-form computer interpretation of IP and resistivity data from a certain large-size lead-zinc deposit in Hebei Province. The result of the interpretation demonstrates that the application of this software system to 2-dimensional interactive inversion of IP and resistivity data can quite satisfactorily infer the spatial shapes and occurrence modes of underground ore (mineralized) bodies, and hence provide grounds for rational arrangement of exploration work.