The invention relates to a disposable cup cover adding device. The disposable cup cover adding device comprises an air blower, a limiting circular ring, a conveying belt, a plastic belt and a sensor,wherein the air blower comprises a fan and a motor, the fan is installed in the air blower and driven by the motor, the limiting circular ring is fixedly installed between the air blower and the conveying belt, the conveying belt is wound with the plastic belt, the plastic belt is in a caterpillar shape as a whole and winds the conveying belt, and several unit-folding-type plastic cup covers whichare in a state of being in semi-joint with the plastic belt are uniformly distributed on the plastic belt. According to a using method of the disposable cup cover adding device, the disposable cup cover adding device can be operated either manually or mechanically, the disposable cup cover adding device is easy to operate and handle, convenient to use, and clean and hygienic, the disposable cup covers are quick and efficient to add, the labor cost is reduced, and the working efficiency is improved. By means of the disposable cup cover adding device and the using method thereof, the occurrenceof disposable cups in the beverage industry can be eradicated, which helps to relieve the environment pollution problems of China, save resources and reduce the cost.