Disclosed is a headband with an air cushion pad, which is mounted on a welding mask, a working helmet, a safety mask or a protective mask. A plurality of air pockets is arranged at regular intervals or asymmetrical intervals within the air cushion pad mounted on the entirety or a part of the headband contacting the worker's head, a plurality of projections is formed on the front surface of the air cushion pad contacting the worker's head, the worker's forehead or the rear portion of the worker's head, and if the worker wears the headband, the amount of air filling air pockets is adjusted according to a shape of the worker's head or a pressing degree of the headband onto the worker's head so that the worker may firmly and comfortably wear the headband under the condition that the headband is completely adhered to the worker's head.