It is difficult for current existing micro-models to simulate and quantify displacement of residual oil film. A laboratory system was developed to model displacement of oil film in porous media，and flooding experiments on oil film were conducted with several single and composite oil displacement agents. Quantification results of displacement efficiency of oil film were presented. At the same flow conditions，the composite system of surfactant/strong alkaline has the highest displacement efficiency of 74.32% with low interfacial intension，strong emulsification and wettability change ability. Surfactant solution and its composite system consisting of weak alkaline or salt have low interfacial intension and strong emulsification and their displacement efficiencies are between 57.49% and 71.98%. The displacement efficiencies of strong base and weak base solution capable of wettability change are 56.09% and 10.14% respectively. However，the displacement efficiency of salt solution with mass fraction of 0.2% is the lowest without the above three displacement properties. Research results show that higher oil film displacement efficiency can be obtained by chemical agents with lower interfacial tension，strong emulsification and wettability change ability.