In order to research the relationship between emulsifying and oil recovery of surfactant-polymer （SP） compound flooding for the conglomerate reservoir，by controlling the emulsifying intensity and the migration law of emulsifying system in long core，the oil displacement effect of binary compound system of partially hydrolyzed polyacrylamide（HPAM）and naphthenic sulfonate surfactant（KPS）with different emulsification intensity was studied，the effect of emulsifying degree on EOR was clarified. The experiment results showed that the medium emulsified SP system with oil-water interfacial tension（IFT）of 5×10-2 mN/m had 8% oil displacement efficiency more than the non-emulsified SP system with IFT of 5×10-3 mN/m. When the critical viscosity of SP system reached，the emulsion with IFT of 5×10-2 mN/m and suitable emulsion composite index could compensate the viscosity of oil displacement system and keep the stability of the viscosity of oil displacement system for a long distance，which was beneficial to EOR. In the multi-factor coupling of EOR decision system for conglomerate reservoir in SP compound flooding， the oil recovery could be increased by adjusting the viscosity ratio of flooding system and emulsion composite index when the permeability range was large. When the permeability ratio was less than or equal to 6，the oil recovery could be greatly improved by controlling the IFT and emulsion composite index. When the remaining oil saturation was less than 50%，the emulsion composite index was controlled at 50%—70%. While the former was more than 50%，the latter was controlled at 30%—50%. The SP compound flooding technology with low IFT and controllable emulsification was implemented in Xinjiang oilfield，the oil recovery rate increased by 28% and the reduction of water content decreased by more than 40%，which realized the personalized design of step-by-step viscosity reduction and step-by-step mobilization of oil displacement system.