Abstract:The advanced fuzzy pattern recognition method is recommended which solves for fuzzy relation simultaneously in horizontal and vertical directions. It is applied to transient electromagnetic data interpretation. Transient electromagnetic survey brings heavier noise than seismic exploration does,so single-parameter interpretation reveals less accurate geoelectrical informations. Multiparameter interpretation of transient electromagnetic data is thus very significant. Multiparameter interpretation using fuzzy pattern recognition has brought good effect in transient electro-magnetic data interpretation.