The utility model discloses an ignition device for self-spread high-temperature synthesizing new material, which comprises an alternating current power supply, a first switch, a fuse wire, an electronic pressure regulating module, an ignition tungsten filament and a temperature-display controlling device. The alternating current power supply of 220V passing by the fuse wire and the first switch is connected to the input terminal of the electronic pressure regulating module, and the output terminal of the electronic pressure regulating module is connected with the ignition tungsten filament. The input terminal of the electronic pressure regulating module is connected with the temperature-display controlling device in parallel. The output terminal of the temperature-display controlling device is connected with an electric thermocouple inserted into a synthesizer. The utility model employs the electronic pressure regulating module to replace the autotransformer which is not only large in volume but also heavy, and the volume and the weight of the ignition device are largely reduced. Meanwhile the pressure regulating of the electronic pressure regulating module is convenient, safe and reliable.