This work studies selective laser melting of 2Cr13 stainless steel. The main contents include the development of forming process parameters and the solidification behavior of molten pool under different process parameters. Besides, the microstructure observation test blocks are prepared and observed, mechanical property test blocks are prepared and tested, including Brinell Hardness, bending strength and room temperature tensile properties. The results show that when the forming process parameters are set as laser power 200 W, layer thickness 30 μm, spot spacing 75 μm, exposure time 110 μs, line spacing 115 μm, the density of the molded part reaches 99.75%. There is no hole in the formed part and the longitudinal section is lapped in the form of fish scales. The deposited parts have high strength, but the plasticity is poor and the performance shows an anisotropy. The lateral performance is similar to that of the forging but the longitudinal performance is weaker.