Abstract: Running benefit of 53 family farms for pig breeding of purchased piglets type and 40 family farms for pig breeding of farrow type in Xiangxi state of Hunan province was analyzed.Results showed that family farms for pig breeding of farrow type could bring more profit.Optimization design of breeding scale for family farm of two kinds of farming mode was carried out.Results showed that culture scale of family farms for pig breeding of purchased piglets was appropriate to marketing of 800 slaughter pigs.And the family farms for pig breeding of farrow type was appropriate to marketing of 500 slaughter pigs.