Abstract: In order to solve the pressure energy waste problem in the natural gas transmission process and improve the utilization rate of natural gas energy,this paper proposes to introduce the natural gas pressure energy power generation system into the overall dispatching scheme of the microgrid. Aiming at the heat supplement needs of the front and rear ports in the natural gas pressure energy power generation system,the air-cooled heat pump supplementary heating system in the microgrid is coupled with the pressure energy power generation system. Taking into account the pressure energy output fluctuations caused by flow fluctuations in the natural gas pipeline network and environmental factors,a micro-grid integrated load storage coordination optimization scheme was proposed to ensure efficient and stable operation of the system. Based on the above content,a microgrid optimization dispatching model considering the controllable power output cost,energy storage dispatching cost,interaction cost between microgrid and distribution network and load dispatching cost is constructed,and Yalmip toolkit is used to write the optimal dispatching program. Finally,by simulating the data of a voltage regulating station in the southwestern region,the economy and reliability of the scheme in this paper are verified.