The paper expounds synthesis of graft copolymerization type silicone-acrylic emulsion, and approaches some important factors which have an influence on film properties of silicone-acrylic emulsion paint such as weather and dirt pickup resistance etc. 本文阐述了共聚接枝型硅丙乳液的合成,并探讨了影响硅丙乳胶漆的耐候性,耐沾污性等漆膜性能的主要因素。