Most volunteer organizations in universities focus their attention on urban communities and residents, but neglect rural residents. Agricultural universities have responsibilities and conditions to serve rural areas, and should bring into play their leading role. This study surveyed situations of volunteers of Northwest A&F University serving rural left-behind children, and found that there are problems including weak volunteer awareness, unstable organization members, imperfect organization construction, and lack of effect incentive mechanism. Finally, it came up four recommendations: strengthening “active service” ideological education, improving management system construction, establishing incentive mechanism, and setting up brand project, to provide feasible path for agricultural universities serving rural weak groups in a better way.