Abstract: Disclosed herein is a heating cabinet, in which a water collection tray is located in the heating cabinet such that the tray is not exposed to the outside, and water produced when an object is heated is collected in the water collection tray. The heating cabinet includes a main body defining a heating space in which an object to be heated is seated, a water collection tray provided under the heating space to be accommodated in the main body, and collecting water produced when the object is heated, and a front door rotatably coupled to a side of the main body to selectively close the open heating space while receiving the water collection tray, the front door having a guide part that is formed on a surface facing the heating space to guide the water, produced when the object is heated, to the water collection tray.