【摘要】I use the model of financial investment including social capital and the effect of law and education to study the relations of social capital and finance development of China.There are two facts.First,Social capital has strong effect on the use of financial contract of China.Social capital rises with deposit and loan and declines with informal credit.Second,the perfect law system and high level of education has effect on the finance development too.Judicial inefficiency rises with cash and declines with loan and stock.The level of education rises with stock and loan and declines with cash.