[Purpose/significance] According to the relevant policies of open sharing of scientific data in the United States,in order to provide some ideas for the practice of scientific data open sharing in the future.[Method/process] By investigating the relevant policies of open sharing of scientific data in the United States and combining with the management examples of NSF,NIH and NASA,three typical scientific institutions in the United States.It is concluded that open sharing of scientific data in the United States is conducive to promoting innovation in areas such as health support,scientific and technological innovation,and economic development.[Result/conclusion] According to the present situation of our country,this paper puts forward four suggestions on the establishment of scientific data open sharing policy,the construction of ecological chain,the construction of think-tank and the formation of life system,further help our country science and technology progress,promote the society all-round development.