The raw rubber and vulcanizate of epichlorohydrin rubber (ECO) were characterized by infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC). The results showed that FTIR could be used for accurate identification of ECO type based on the Beer-Lambert law. DSC results showed that the Tg of raw ECO rubber and vulcanized ECO rubber were basically the same, which could also be used for identification of epichlorohydrin rubber.