The temperature inside the arc is extremely high, which can reach thousands of degrees Celsius or even higher. This high temperature is due to the ionization of gas molecules in the arc, and the acceleration of electrons under the action of electric field, which frequently collides with gas molecules, converting electrical energy into heat energy. Therefore, the predict the arc fire alarm, determine the location in a timely manner, and make a preliminary judgment on the type and temperature of the fire to provide support for personnel handling and equipment allocation in the later stage. Anyway, the results show that my proposed method can improve the effectiveness of activity processing by about 15%, resulting in a fire alarm warning form of over 80%. The fire alarm situation is recorded through spectral data and other forms, which facilitates the optimization of the later plan and provides active detection support for the film department. Therefore, this method has a high timeline in the arc or warning process.