Based on an analysis of core pore structure and static models characterizing pore structuer,a simple equation for calculating the parameters of pore structure can be deduced by the laboratory data.so it is possible to find paramerers of pore structure by using well log data.Analysis of two examples indicates that most parameters of pore structure such as the radius of the pore throat soring coefficient can be calculated by using AC,CIND and SP.this lays afoundation for the study on reservoir and guide the oil field production and implementation of development measures.