During CO₂-EOR，supercritical CO₂ will extract the light components in the crude oil，resulting in the heavy components residue，which not only makes it difficult to greatly enhance the oil recovery，but also causes blockage of the pore throat and irreversible damage to the reservoir. To solve this problem，a new idea of surfactant micelle solubilizing heavy components after CO₂ flooding was proposed in this work. Sodium dodecylbenzene sulfonate and aliphatic alcohol polyoxypropylene ether sulfate were selected to investigate their micellar solubilization behavior for heavy components. The changes of micelle size and morphology during solubilization were investigated by dynamic light scattering and transmission electron microscopy. The results showed that the surfactant micelles could solubilize effectively the heavy components after CO₂ flooding. The maximum solubilization capacity of 0.2% surfactant solution to heavy alkanes and heavy aromatics was 2.5 g/L and 3.2 g/L，respectively. Heavy alkanes were more soluble in micelle core while heavy aromatics in palisade layer.