In　order　to　provide　three　dimensional　(3D)　models　with　complete　agronomic　information　and　high　fidelity　for　the　construction　of　digital　maize　system,　a　3D　template　resource　library　of　maize　organs　was　constructed.　Firstly,　maize　plants　were　subdivided　into　basic　structural　units,　including　nodal　root,　lateral　root,　mesocotyl,　stems,　sheath,　leaf,　tassel　and　ear.　Secondly,　the　data　acquisition　standard　of　major　maize　organs　was　established　from　the　perspective　of　3D　data　acquisition　by　analyzing　the　morphological　and　structural　features　of　the　organs.　3D　data　of　the　maize　organs　were　acquired　by　using　3D　scanners　and　3D　digitizers　according　to　the　standard,　and　geometric　models　of　the　maize　organs　were　constructed　on　the　basis　of　the　measured　3D　data.　Finally,　the　3D　template　resource　library　of　maize　organs　was　constructed　by　assembling　these　geometric　models.　The　library　took　cultivar,　organ　name,　growth　period　etc.　as　its　key　words　for　resource　retrieval.　It　contained　a　large　number　of　maize　organ　models　of　different　cultivars　and　multiple　growth　periods　with　consistent　agronomic　parameters.　The　construction　of　the　library　would　promote　the　digital　maize　system　and　played　a　great　role　in　the　research,　production,　promotion　and　demonstration　of　maize　industry,　it　also　provided　a　reference　for　the　3D　resource　library　construction　of　other　plants.　©　2016,　Chinese　Society　of　Agricultural　Machinery.　All　right　reserved.