In　this　paper,　a　method　of　small　scale　wind　field　display　and　wind　motion　simulation　is　introduced.　First,　using　CFD　(Computational　Fluid　Dynamics)　algorithm　to　calculate　the　wind　speed　and　wind　direction　data　in　the　complex　terrain.　Then　building　terrain　using　DEM(Digital　Elevation　Model)data　and　OSG(Open　Scene　Graph)　graphics　engines.　Then,　DEM　data　combine　with　wind　speed　and　wind　direction　data,　the　wind　attributes　corresponding　to　each　grid　are　calculated.　Attributes　include　speed　of　wind,　wind　direction,　grid　unit　wind　direction　vector,　unit　terrain　normal　and　material　pointer.　Then　build　the　wind　node,　the　wind　node　changes　the　wind　node　size,　color,　position　and　angle　according　to　the　wind　property　corresponding　to　the　grid.　Each　grid　shows　the　wind　node　of　the　grid　wind　property,　and　wind　nodes　displayed　on　the　whole　terrain　can　represent　the　wind　field.　During　the　simulation　of　wind　motion,　the　wind　node　moves　at　each　time　and　reads　the　attributes　of　the　grid　under　the　next　position,　so　as　to　realize　the　simulation　of　wind　motion.　The　method　is　proved　to　be　feasible　to　show　small　scale　wind　field　and　simulated　wind　motion.