The invention discloses a combination flooding method according to the correction of a capillary number curve. A relation curve of the capillary number and the residual oil saturation is established by a flooding experiment to determine the optimal range of the capillary number, and a flooding factor is optimized according to the optimal range of the capillary number. In the process of optimizingthe flooding factor, firstly, well spacing and injection speed are optimized by using a numerical reservoir simulation method to obtain the underground seepage velocity; secondly, the reference rangeof underground working viscosity is given according to the field construction condition, and the interfacial tension of a flooding system and the underground working viscosity are optimized by using the safety factor and efficiency coefficient; and finally, the well spacing, the injection speed, the underground working velocity and the interfacial tension of the flooding system are determined according to the optimized flooding factor, and the combination flooding is performed. The combination flooding method can combine concrete construction situation, and limits the capillary number in the optimal range to ensure the stability of the combination flooding method and relatively improve the recovery percent.