The invention provides an electric heat tracing panel and an automatic ice and snow melting system, and belongs to the technical field of electric heating ice and snow melting. The system comprises an automatic control subsystem and the electric heat tracing panel. The automatic control subsystem comprises a temperature sensor, an ice melting sensor and a controller. The temperature sensor is used for sending temperature signals to the controller. The ice melting sensor is used for sending ice and snow state signals to the controller. The controller is used for controlling the electric heat tracing panel to automatically melt ice and snow through heating. The electric heat tracing panel comprises a heating layer, an insulation layer and a protection layer. The insulation layer wraps the outer side of the heating layer, and the protection layer wraps the outer side of the insulation layer. The heating layer is protected by the protection layer and the insulation layer, the heating layer is not prone to aging in the natural environment and is not likely to be damaged by gnawing of small animals, and the ice and snow storage capacity in the using environment can be recognized through the ice melting sensor and the temperature sensor, so that the recognition rate is high, and the automation degree of ice and snow melting is improved.