Family is the foundation of society,the construction of family library is an important measure for national reading(program),and it is also an important way of family education.The paper discusses the significance,the principles of style and the design of service function of family library; and puts forward the strategy to improve the comprehensive utilization rate of family library: constructing the" Internet + family"virtual resource system,organizing actively family reading activities,being involved with community reading programs enthusiastically,striving for the government support,building"library + family"reading service system and exploring the"membership"development model of family library assisted by social forces.