One of the requirements for steel pipe welding is density, so that accidents do not occur when using spiral pipe welding. In the case of pipeline manufacturing, such as porosity, there will be holes in pipeline welds. For example, when using pipeline welds, there will be holes, which will affect the compactness of pipelines and cause serious losses of pipeline leakage. It also causes corrosion due to the time between the voids in the welded pipe, which reduces the service time of the pipe. One of the most common reasons for the porosity of spiral steel pipe welding is the presence of water flow or some dirt, which will cause the exhaust pipe to appear in the welding process. Selection of a considerable flux composition during welding, in the welding reaction, so that hydrogen pore will not occur welding. When welding, the thickness of solder deposit should be between 25 and 45, and it should be noted that during the use process, the flux of particles with large and small packing density should be maximized, if on the contrary, it should adopt the minimum. In summer or relatively mild weather, it may be the recovery of flux after drying and the use period after drying. In order to prevent the appearance of the pore on the surface of spiral steel pipe, the surface of steel plate should be treated, and all dirty things should be cleaned up when welding steel plate, so as to avoid welding and welding them when other materials enter, resulting in pore.