The invention discloses a welding technology method, and particularly discloses a brazing technology. In order to solve the above-mentioned technological problem, the brazing technology comprises the technological steps that 1, welding portions of a weldment are cleaned; and 2, the weldment is subjected to brazing along the welding portions by means of welding materials. The brazing technology has the beneficial effects that when abrasive blasting or polishing treatment is conducted on the weldment, oxides and other impurities of the welding portions of the weldment are removed, a weldment body is exposed, a welding surface is polished according to the set roughness requirement, and then brazing welding is completed finally; it is shown through repeated trials that a product made through the above-mentioned method can be dry-fired to 440 DEG C and then put into water of 20 DEG C to be cooled, and a brazed composite bottom does not deform or crack and completely exceeds the requirement of European Union on composite-bottom brazed products; at the time of improving the product quality, the foreign market is opened, the market competitiveness of domestic products is improved, and use safety is guaranteed.