Abstract: The lithology of ordinary glutenite reservoir in the north actic region,Biyang sag,is characterized by diversity,severe anisotropy,hardness to indentify lithology,unstable horizontal distribution and uncertain controlling factors to hydrocarbon accumulation.After standardizing the logging curves on the basis of core analysis data,logging,imaging logging data,production test and geological data,a series of geological parameters to finely describe the reservoir lithology are established.New imaging logging technologies and ordinary logging data are compositely used to identify the lithology, presenting the yardstick and method suitable to the reservoir lithology at the area.