To solve the problem of a conventional photographic processing device that a large amount of liquid needs to be heated and the liquid needs to be held over a long period while maintaining the activity.

The photographic processing device includes a closed chamber, a processing chamber arranged in the closed chamber and for holding material in the chamber, a means for rotating the processing chamber, and a means for heating air and making the air circulate through the closed chamber, and the processing chamber is provided with at least one fin the outer periphery of which is surrounded by the processing chamber.