The invention relates to a natural gas distributed energy source optimization system. The system comprises a gas generator set, a boiler system, a power grid system, a power supply network, a waste heat recovery device, a load detection unit and a master control terminal, wherein gas heat sources of the gas generator set and the boiler system are provided through the same combustion chamber, and the boiler system is used for heating a user; the gas generator set is connected with the power supply network, and is used for supplying power to a user terminal through the power supply network, andwaste heat generated by the gas generator set is recovered by the waste heat recovery device and is used for user heating loads; and the master control terminal is used for adjusting the heat source supply amount of the combustion chamber to the gas generator set and the boiler system according to real-time loads of the user terminal and peak value prediction of the power grid system, and is usedfor simultaneously adjusting power supplies of the gas generator set and the power grid system. According to the scheme, the gas generator set is connected with the national grid, meanwhile, a reasonable control mechanism is introduced, so that the problems that an individual gas generator set is single in power generation power and large in energy consumption loss are solved.