The changes in the work requirements of gas welders in the new and old editions of the "（Welder） National Vocational Skills Standards" are elaborated and discussed,also the compilation principles and framework of the new edition of the "National Vocational Skills Qualification Training Course for Gas Welders" is introduced to facilitate relevant personnel can quickly adapt to the new gas welder training and assessment system,which can effectively promote gas welder vocational training and vocational skills verification,and make outstanding contributions to the transformation and upgrading of China’s welding industry.