The effects of filler type, particle size, and dosage on evaporation residue of PVC gasket were studied through experiments. The results showed that 4 kinds of filler can be used for PVC gasket in water-based and low-ethanol product packaging; needle shaped filler T4 suits acidic food packaging; plasticizer needs to be filtrated except for filler in oily food packaging; the smaller the filler size is, the more evaporation residue shows; filler dosage can be added in producible range.