For these problems of poor acidizing effect and difficult acidizing diversion in high permeability heterogeneous sandstone reservoirs，the ionic Bola surfactant（BS）（sodium polypropylene glycol dicarboxylate）was prepared by etherification reaction of polypropylene glycol，and a cationic guar（hydroxypropyl trimethylammonium chloride guar）and BS were assembled into a supramolecular gel BSP system. The optimal conditions for gel formation of BSP system were obtained by analyzing the viscosity change characteristics. Theological characteristics and shear repairability of the BSP system were tested by rheometer. Acidification diversion effect of the system was tested by parallel core flow experiment，and the mechanism was probed by SEM. The results showed that the viscosity of the BSP system exhibited“hump phenomenon”with temperature rose，and had excellent self-assembly recovery performance of viscosity after shearing. It is difficult to stimulation the low permeability area when acidizing the reservoir with serious heterogeneity. BSP system had excellent temporary plugging and diverting effect，during acidification，the injection of BSP system could effectively reduce the filtration loss of acid solution in high permeability area and effectively start the low permeability area. The BSP showed network structure and supramolecular microspheres at different pH values，which was helpful to realize the temporary plugging and cleaning.