To provide a snow melting device capable of carrying out effective power saving by preventing wasteful power consumption during a non-operational period.

The snow melting device 1 melting snow by circulating a heating medium heated by a heat source unit 2 to a snow melting terminal 9 is provided with a control means 8 for carrying out control of each part, an information output means 17 for outputting information relevant to operation, and an operation state distinguishing means 81 for distinguishing an operation unnecessary state or an operation stoppage state of the snow melting device. It is composed so that when the operation state distinguishing means 81 continuously distinguishes the operation unnecessary state or the operation stoppage state for a predetermined time, the control means 8 carries out power saving signaling promoting a cutoff of energization of an AC power supply by the information output means 17.