The present invention relates to a coffee roasting device, and may comprise: a body; a rotating unit rotatably fastened/fixed to the upper portion of the body, a part of one side surface of the rotating unit being incised in the longitudinal direction, thereby forming an entrance/exit, and coffee beans being contained inside the rotating unit via the entrance/exit; a heating unit positioned inside the rotating unit and supplied with external power, thereby generating heat; a driving unit positioned on one side of the rotating unit, the driving unit providing the rotating unit with rotating power; and a partition attached/fixed to the inner surface of the rotating unit so as to prevent the coffee beans from being discharged to the outside via the entrance/exit.