A number of researches have focused on the modeling of distributed power and control strategy of Microgrid, but there are fewer studies for mode conversion distributed Micro grid access choice of control policy. Meanwhile, the control of the Microgird with multiple distributed generations is more difficult than that of the Microgrid with just on distributed power. This paper analyzes the particularity of Microgrid, compares different control modes, and finally selects the master-slave control mode as the control strategy of Microgrid. PQ control strategies of various distributed generations has been built according to working characteristics of accessing model, and the simulation model of a Microgrid containing photovoltaic cells, wind turbines and microturbines has been built. The working characteristics of paralleling Microgrid with light intensity changes has been simulated, and the results shows that the proper choice of control method can guarantee the controllability of Microgrid as to power system and excellent dynamic performance, thus it has slight impact on the power system.