Abstract: Al/Ti heterogeneous metal composite components were successfully prepared using laser welding-brazing technology through three different oscillating paths (no oscillation, 8-shaped, triangular). The effects of different oscillating paths on the weld formation, intermetallic compound (IMC), tensile strength, and fracture behavior of Al/Ti joints were studied. When the oscillating path changes from no oscillation to a triangle or figure eight shape, the spreading length of the solder on the surface of the titanium alloy increases, and the thickness of the IMC layer at the interface gradually becomes thinner. Under the 8-shaped oscillation, the interface IMC is the thinnest, ranging from 0.94 to 3.19 μm. Through the analysis of the IMC layer at the interface under three oscillating paths using an energy spectrometer, it was found that Si element aggregated at the Ti/Al brazing interface, forming the Ti (Al, Si)₃ ternary phase. Under the condition of no oscillation, its tensile strength is the lowest, at 119.19 MPa. The fracture occurs at the Ti/ Ti(Al,Si)₃ interface or Ti(Al,Si)₃ layer, and the fracture surface shows typical brittle fracture characteristics. The oscillating laser reduced the thickness of the IMC layer at the interface, improved the tensile strength of the joint, and reached 202.85 MPa. The fracture path changed from the Ti/Al brazing interface to the heat affected zone of the aluminum base material, and the fracture surface was ductile fracture.