A digital/physical hybrid simulation platform for micro-grid is designed and implemented. The platform is composed of NI-PXI digital platform and DC/AC physical platform, the control mode is composed of bottom normalized control and upper layer parallel control, and the Matlab/Simulink control mode of micro-grid is converted to the real-time simulation mode by the NI VeriStand. The micro-grid control mode includes master slave control, peer-to-peer control and hierarchical control modes. The control strategy of key operation mode corresponding to the three kinds of control mode is proposed based on the structure and control mode of the platform. The simulation platform is established in National Wind Power Grid Integration R & D (Testing) Center and the control strategy of micro-grid is verified on the platform. Experimental results demonstrate the effectiveness of the control strategy and the scientificity of the design scheme.