To provide an industrial heating system having stable high energy efficiency.

The industrial heating system includes; a heat pump apparatus (12); an auxiliary apparatus (13) including at least one of a boiler and an electric heater; a heating chamber (16) for transferring the heat from the heat pump apparatus and the auxiliary apparatus to the object to be heated; a heat accumulation apparatus (30) in which the exhaust heat recovered from the heating chamber at least is accumulated and from which the accumulated heat is supplied to the heat pump apparatus; and a controller (70). The controller (70) controls the operating timing and substantial operating time of each of the heat pump apparatus and the auxiliary apparatus on the basis of the quantity of the heat accumulated in the heat accumulation apparatus at least.