Epoxy Fatty Acids Methyl Ester, light yellow oil liquid under normal temperature, is made from natural plant oil, as a kind of new type epoxy plasticizer, it can efficiently substitute DOP and DBP in production of PVC products, and contributes 20~30 portion quantity of the plasticizers in total. It is well consistent with PVC resin, stable to light and heat, and volatilizes little. It can be applied to all PVC products, especially in PVC sheet and artificial leather products. It is widely used in the cable wire, PVC tube, PVC sole and gland strip.