Heating structure suitable for small-thrust engine of spacecraft

The invention provides a heating structure suitable for a small-thrust engine of a spacecraft. The heating structure comprises an electric heating piece, a temperature sensor, a multi-layer heat insulation assembly and a heat insulation gasket, the temperature sensor is installed on an engine injector, the engine injector is connected with an electromagnetic valve, one face of the electric heating piece is installed on the electromagnetic valve, the multi-layer heat insulation assembly is installed on the other face of the electric heating piece. The engine injector is installed on the machine frame, the heat insulation gasket is arranged between the engine injector and the machine frame, the temperature of the engine injector is indirectly guaranteed by adopting an electromagnetic valve heating measure, an armored heater of the engine injector is omitted, the overall weight of an engine can be reduced by more than 20%, the design of an engine injector is simplified, the reliability of an engine heater is imp