Abstract: BOPP resin and film samples of both native and abroad are investigated and compared on their molecular and condensed structure. The solvent soluble and insoluble fractionations, their molecular weight by GPC and molecular sequence identifications by 13C-NMR were characterized to clearly distinguish the resin structure. The high molecular end (HME) and low molecular end (LME) in GPC curves were defined. Results showed that the random sequence of 4wt.%6wt.% and over 10wt.% HME were required for BOPP. The foreign resins have higher flow index, lower melt shear deformation index of * 1 and lower thermo degradation temperature than these of the native ones (*1). There appeared gas bulbs in native samples but not in abroad ones. X-ray revealed the higher  form, smaller crystallites and lower crystallization degree in SEB1 and SEB2 than these in the native ones. In PP copolymer with PE of 0.20.5 wt.%, the high performance SEB1 and SEB2 BOPP resins were obtained. SEM surface morphology showed the gel on thick SDB1 films with particle-like while silk-like orientation in SEB3.