Abstract: in order to build logging interpretation system in the shale gas evaluation the diferences between shale gas logging and common logging were comparatively analyzed.Ey selcting an example ofshalegas exploration,the aplication on identifying gas beaing shales was illustrated and the methods of logging evaluationof shale gas resevors were discussed.T'he resuits showed that the common logging method could met the demand of dientfying gas bearing shales and the combinaion of common and specal logging were avallable for caculating the resevoir parameters of porositygas content as vl as some key factors l.ie ToC.maturity index,the special ogging technology were used for recognizing thefissures and evaluating the parameters of rock mechanics.Bothcommon logging and special had theirspectal advantages. To enhance the study of combined application of common and special logging should be the future direction.