Abstract: in order to find out the changing characterisics about proppant fiow conductivity with diferent HPG fracturing fu d d fferent pressure and different coal elastic modulus based on the selectig HPG broken glue fuid.quartz conductivity experiments in ctive water and HPG broken glu fuid were respectively caried out. .onsidering on the effects on the residue of HPG broken gue fuid and embeded of the supporting agent.the mnathematits calculato model of the proppant fow condu.titywas establis hed,the acuracy of the model was verified by the experimental.The changing charactersics of the supporting with the key parameters were discussed.The resuis shaw that.when the other condtions are the sam ,the propant fow conductity n the HPG gel treakin liquid is lss than in the active water:with the increasing residue content ofthe gel breakin licuic .the propant fiow conductivity decreases exponentiall with theincreasing of coushing rale about proppant the propant fow conductivity decreaseslineary :with the increasing of cosure pressure the proppant fiow conductivtydecreases exponentilly: ith the increasing ofthe lastc modulus,the proppan fiow conductvty increases logarithmnical t is one of the key to increase the appication of HPG fracturin fuid by reducing HPG residue.