Abstract:The paper introduces the general situation of the idle resources in rural areas, systematically combs the theoretical research results of the sharing economy, and analyzes the major ways to promote the use of the idle resources in the rural areas by the sharing economy. Then the paper probes into the difficulties of the use of idle resources in rural areas based on the perspective of sharing economy from such six aspects as the "shared farm" mode from the shared idle farm land which is still to be further explored. The problems such as homogenization, ownership management,legal disputes, interest segmentation and other issues in the development of shared idle houses are highlighted and the shared idle farm machinery is faced with the sharing problem of the large agricultural machinery and the waste of the traditional agricultural equipment. The shared problem of the idle labor, especially the idle labor in the slack season, must be taken seriously.The problems related to "sharing school buildings", such as to clear property rights of the idle school buildings, planning, development, supervision, etc.still need to be solved. There are still many difficulties in sharing the right of the whole process of production and management required by "shared agricultural products". Finally, the paper puts forward the ways to solve the problems of the use of idle resources in rural areas in the perspective of sharing economy.