Abstract: In order to study the key technology of diesel-storage coordinated control application in isolated microgrid with pulse load, the different effects of inverter's different control strategies on parallel connection of inverter and diesel generating set with mixed load are firstly analyzed by simulation. According to the characteristics of dual-source parallel connection with different types of loads under different control strategies, combined with the load characteristics of isolated microgrid with pulse load, the combination of improved V/f control, droop control and virtual diesel generator set control is adopted as the control strategy of inverter. In order to reduce diesel consumption, increase the utilization of renewable energy and optimize the operation status of the system, an energy management scheme is studied. Finally, a variety of power supply configuration of isolated microgrid with pulse load are taken as examples to analyze the benefits.