Abstract: Several important additive of pattern wax, such as No.80 and No.85 microcrystalline wax and additive LMWA 201 were discussed. A new additive of LPW low temperature pattern wax was developed. The experimental results showed that No.80 and No.85 microcrystalline wax and additive 201 could make the pattern wax crystal construction fine, while additive LMWA 201 was better than microcrystalline wax. The application tests showed the gloss, rigidity and intensity of LPM pattern wax with additive LMWA 201 were better than those with low casting temperature pattern wax.