A ceiling type air conditioner includes a case defining an outer appearance, a fan disposed to a bottom of the case, a turbo fan disposed within the case, the turbo fan including a main plate rotated by power provided from the fan motor and a blade having a side connected to the main plate, and a heat exchanger disposed outside the turbo fan. A cooling passage cooling the fan motor is defined between the main plate and the bottom surface of the case. The cooling passage includes a flow part through which air passing through the blade flows into the flow part toward the fan motor, and a panel installation part to which a panel is installed for adjusting an amount of air flowing into the flow part toward the fan motor.