To reduce burden on an operator, by starting control to change a a preset temperature of a heat treatment section, and thus changing the preset temperature of the heat treatment section to a treatment temperature before starting treatment of an allocation object lot.

On the basis of a preset temperature and a status of use of respective heat treatment sections HP1-HP8 before starting treatment of a #2 lot to be treated under input treatment conditions, a main controller allocates a heat treatment section HP to be used for each heat treatment of the #2 lot, using the treatment temperature of each heat treatment included in the input treatment conditions for the #2 lot. Then, it starts control to change the preset temperatures of the heat treatment sections HP5, HP6, and HP8 for a #1 lot corresponding to each heat treatment of the #2 lot, and thus changes the preset temperatures to the treatment temperature of each heat treatment of the #2 lot corresponding thereto.