Considering the operating constraints of typical equipments in a hybrid isolated microgrid consisting of wind power， photovoltaic system， diesel generator， and battery storage， a coordinated control strategy is proposed. The control strategy aims at ensuring a long-term stable operation of the isolated microgrid and reducing the system cost over lifetime. A typical and practical isolated microgrid is simulated via a self-developed simulation tool named quasi-steady simulation and optimization tool for microgrid（QSOT-MG）. The simulation results are compared with those of Hybrid2， a simulation tool developed by National Renewable Energy Laboratory（NERL） of USA. The effectiveness and correctness of the control strategy proposed are verified by comparison.