Abstract: Permeability is one of the most important parameters affecting reservoir physcical properties.This paper,based on the study of reservoir heterogeneity parameters home and abroad,gave a systematic analysis of various heterogeneous parameters,including the plane distribution features,probability distribution characteristics,calculation and comparison of different average values,rational selection and utilization of parameters,analysis of representative,characterization of parameters,and geological factors affecting the calculation of parameters,in order to provide practical permeability parameters in the course of reservoir simulation and the calcuation of oil and gas reserves.