A clothes dryer with a filter unit and a filter cover having a coupling structure corresponding to each other. The clothes dryer includes a body, a drum installed inside the body, a drying unit configured to dry air passed through the drum, a filter unit disposed on the drying unit and detachably installed on the body, a filter cover fixed by provided with one side thereof being installed on the body and the other side thereof being coupled to the filter unit. When the filter unit is not assembled, a user may notice the filter unit not being assembled due to the filter unit and the filter cover, both of which are provided with a coupling structure corresponding to each other.