Abstract:GH3536 alloy is the main material of aero engine fuel nozzle. Compared with the traditional processing technology, laser solid forming technology（LSF）has the advantages of near net forming, which is more suitable for the production of complex structural parts and reduces the cost. The scanning path plays an important role in LSF. In this paper, metallographic, XRD, SEM and tensile testing methods were used to explore the influence of 45° cross grating and zig-zag cross grating scanning paths on GH3536 alloy fabricated by LSF. The results show that the two scanning paths have little effect on the microstructure of GH3536 alloy fabricated by LSF. The substrate of two scanning paths are γ phase. There are M23C6 carbides in the grain boundary, and there are both M23C6 carbides and M6C carbides in the grain. The heat accumulation of zig-zag cross grating is slightly higher than that of 45 ° cross grating, resulting in larger porosity and higher forming height. The tensile properties of the two scanning paths are similar. The fracture mode is ductile fracture, and the crack occurs at the carbide, mainly transgranular fracture.