A coating apparatus includes a die coater that supplies a coating liquid to a web. The die coater includes a die main body, a manifold, a slot, a lip face, a mount, a decompression chamber, and a container. The container includes a guide plate guiding the coating liquid or a solvent ejected from the slot of the die coater without bringing the coating liquid or solvent into contact with the mount and the decompression chamber in a non-steady state, in which the coating liquid is not supplied from the die coater to the web. The container collects the coating liquid or the solvent guided by the guide plate. The coating apparatus also includes a liquid discharge tube that is connected to the container and discharges the coating liquid or solvent to an outside of the decompression chamber.