<p>Marble is a typical hard and brittle material, widely used in construction, home decoration, and other fields due to its high strength, hardness, and excellent wear resistance. Diamond wire sawing is an innovative technology applied in the stone cutting industry, significantly reducing processing noise and kerf width, minimizing material cutting loss, and lowering dust pollution, thereby promoting the green development of the industry. This study conducted both single-factor and orthogonal experiments on the diamond wire sawing of marble to investigate the influences of workpiece feed speed, diamond wire speed, and cut workpiece length on cutting force, surface roughness, and waviness. The results showed that as the workpiece feed speed and cut workpiece length increased, diamond wire speed decreased; the cutting force increased; and the size and number of brittle pits and cracks on the cut surface increased, leading to a gradual increase in surface roughness and waviness. The influence of each factor on cutting force, roughness, and waviness ranked from the largest to the smallest as follows: workpiece feed speed, cut workpiece length and diamond wire speed. The findings provide experimental evidence for understanding the diamond wire sawing process of marble.</p>