Nickel-Titanium is one of the most commonly used shape memory alloys which is widely used due to its unique properties such as shape memory effect, superelasticity, wear resistance, corrosion resistance and biocompatibility; but, the problems with the production of this alloy has caused its use to be much lower than expected. Additive manufacturing methods as a solution to produce 3D parts, regardless of geometric complexity, are the perfect solution to overcome the problems of producing this product. In the present study, Nickel-Titanium shape memory alloy was produced by selective laser melting using prealloyed powder. The presence of intermediate compounds at the boundary of the sample and substrate leads to the separation of the product from the substrate; to overcome this problem, production of samples on supports with very low energy and density was proposed as a key solution. The samples showed various thermal and mechanical responses by using various parameters. The various samples had different transformation temperature range; for instance, while objects with austenite finish temperature of about 80 degrees Celsius were produced, samples were also made that exhibit superelastic behavior at the room temperature . The results of DSC test showed that, at a constant power while energy increases, the transformation temperatures initially increased and then decreased. At the same time, a slight formation of some Ni-rich phases, oxide phases, and the segregation of nickel were shown in XRD results. The result of compression test showed the ultimate strength of the product to be nearly 2.5 GPa with a ultimate strain of about 40 percent. Also, the results of cyclic compression tests showed the maximum reversible strains of about 10 percent. The density of final specimens made in this study was often higher than 99 percent. Keywords Nitinol, selective Laser Melting, additive Manufacturing, Nickel-Titanium