In order to obtain dense CuCrZr alloy parts, the main forming parameters of SLM process, such as laser power, scanning speed, scanning distance, and powder spreading, were explored in the present study. At the same time, the microstructures, phases and mechanical properties of CuCrZr alloy samples were investigated. The research results showed that the laser power was the most important influence factor. Increasing the laser power could significantly increase the density of the SLMed parts. The highest density of 96.8% can be obtained under the process combination of powder layer thickness of 0.02 mm, laser power of 170 W, scanning speed of 300 mm/s, and hatching space of 0.04 mm. The yield strength of the sample was (176.7±2.1) MPa, the tensile strength was (244.7±1.2) MPa, and the elongation was 29.4%±0.9%.