The intersection joint weld on 6 mm 2A14 aluminum alloy sheets was obtained by fusion welding (TIG) and friction stir welding (FSW).The macrostructure and microstructure were analyzed, and the fusion area was on the left side of the joint with the porosity defects on the upper of the area.The FSW area was on the right of the joint and displayed a “bowl” shape and the weld is well-formed.Microhardness test results reveal that the microhardness in the TIG weld is obviously lower than that in FSW weld,and the microhardness distribution in the right side of NZ presents “U” type.The tensile test is conducted in fusion welding direction and the joint fails in the base metal with M temper,and apperance of fracture is the toughness fracture modes.