Abstract: Disclosed herein is a waterproof ceiling with multiple types of structures. The waterproof ceiling includes a hanger unit secured at an upper end thereof to a ceiling wall or the waterproof ceiling and placed perpendicularly to a ground to support load on a lower end. A carrying channel is connected to the lower end of the hanger unit and placed parallel to the ground so as to be at right angles with the hanger unit. A drain module bar is connected and secured to a predetermined portion on the carrying channel and forms a predetermined angle with the ground to create a flow passage for leaked water. A waterproof panel is fitted to each of both sides of the drain module bar, thus closing a space between drain module bars. A water collecting pipe is provided vertically on an end of the drain module bar, thus collecting the leaked water and discharging the water to the outside. The hanger unit is connected to the lower end of the drain module bar to support an additional load.