In　the　Software　Defined　Networking　(SDN)　based　Data　Center　Networks　(DCN),　load　balancing　is　one　of　the　research　hotspots.　This　paper　proposes　a　Dynamic　Traffic　Scheduling　(DTS)　strategy　for　load　balancing　taking　the　advantages　of　the　SDN　central　controller.　Considering　the　real-time　network　status,　the　paths　can　be　adjusted　during　the　flow　transmission.　A　flow　equilibrium　degree　is　defined　as　the　trigger　of　enabling　DTS.　The　implementation　process　of　DTS　are　also　described　in　detail.　An　OpenFlow　based　SDN　simulation　platform　is　constructed.　The　experimental　results　indicate　that　DTS　strategy　generate　better　performance　compared　with　other　routing　strategy　without　dynamic　rerouting　mechanism　under　various　load.