Based　on　a　meso　mechanical　analysis　model　of　concrete　material,　a　meso　numerical　approach　is　developed　to　investigate　the　nonlinear　mechanical　properties　of　reinforced　concrete　members.　The　damage　process　and　the　macro　mechanical　properties　of　a　reinforced　concrete　column　under　axial　compression　are　simulated　by　the　proposed　methodology　in　this　study.　The　meso-scale　simulation　results　are　compared　with　those　of　macro-scale　mechanical　analysis　and　the　experimental　observations.　The　investigation　results　indicate　that　(1)　at　meso-level,　the　failure　modes　and　the　macro　mechanical　properties　of　the　reinforced　concrete　column　obtained　from　the　meso　element　equivalent　model　agree　well　with　the　experimental　observations,　which　demonstrate　the　effectiveness　and　correctness　of　the　established　meso-mechanical　approach;　(2)　Compared　to　the　macro-scale　model,　the　meso　mechanical　model　considering　the　heterogeneity　of　concrete,　could　reveal　the　damage　process　and　failure　modes　of　reinforced　concrete　column　more　realistic,　and　the　meso　numerical　results　are　more　consistent　with　the　experimental　results.