A 
laser connection method based on the 
laser material additive 
manufacturing technology relates to a welded connection method of a special material. According to the 
laser material additive manufacturing principle, and by utilizing the laser depositing method and the layer-by-layer piling method, a new material shaped like the 
welding seam between two base materials is formed between the 
welding seam of two connecting materials and the formed new material is further utilized to connect the two base materials. According to the laser connection method based on the laser material additive 
manufacturing technology, provided by the invention, the metallurgical composition of the 
welding seam and the joint performance are improved, near-net forming connection is realized, materials are greatly saved, the cost is reduced, weld defects are controlled, the degree of 
automation is high, and the operation is easy; besides, a 
fiber laser, a YAG 
solid laser, a 
semiconductor laser or CO2 laser are taken as the core, and a 
powder feed device, a protective gas 
system and a cooling 
system are taken as auxiliary appliances, therefore the overall 
system is high in 
automation level, can realize whole-process 
computer control, and is simple in operation processes and further easy to implement.