The compatibility of some energetic materials,PETN,RDX,HMX,BTF,Tetryl,NQ and GAP,with PVB was investigated by using a differential scanning calorimeter. The results show that NQ and GAP are well compatible with PVB,but the compatibility of HMX,RDX and Tetryl with PVB is poor,PETN/PVB and BTF/PVB are very incompatible.