The invention discloses a full-automatic mask ear belt welding machine which is composed of 1, a mask lifting and supplying part, 2, a mask feeding mechanical hand part, 3, an ear belt feeding part, 4, ear belt welding parts, 5, an automatic collecting part, 6, a machine platform, 7, a pneumatic system, and 8, a PLC electrical control part. The full-automatic mask ear belt welding machine is characterized in that the right side of the lower portion of the machine platform is provided with the mask lifting and supplying part, the right side of the upper portion of the machine platform is provided with a mask feeding mechanical hand, the left side and the right side of the mechanical hand are provided with the ear belt welding parts, and the lower portions of the ear belt welding parts are provided with the ear belt feeding part; the left side of the upper portion of the machine is provided with an ear belt material and the automatic collecting part, and the lower portion of the machineis provided with a machine platform part; and the left side of the interior of the machine platform is provided with a pneumatic system and the electrical part. According to the full-automatic mask ear belt welding machine, the problems of independent automatic ear belt welding and automatic feeding are well solved, thus, ear belt welding of a mask machine can be subjected to separated machining,several stations can be made to work at the same according to the speed of the mask machine, and thus, the speed is greatly increased.