The invention discloses a low-noise stainless steel wire. The diameter of the low-noise stainless steel wire ranges from 3.9 mm to 5.1 mm. The low-noise stainless steel wire comprises, by mass percentage, 0.01-0.03% of carbon, 18-20% of chromium, 7-8% of nickel, 0.1-0.12% of copper, 0.4-0.5% of phosphorus and the balance iron. The steel wire is resistant to the high temperature, low in noise and long in service life. The problem that a steel wire is high in noise is solved fundamentally. According to the low-noise stainless steel wire, the categories of alloy materials are added; the proportional constituents of elements of all types of materials are adjusted; the nickel, the chromium, the copper, the phosphorus and the like are added to the materials for preparing the steel wire, so thata stainless steel finished product contains the elements such as the nickel, the chromium, the copper and the phosphorus which are matched reasonably; and the noise problem of a stainless steel material is greatly reduced, and the service life of the low-noise stainless steel wire is prolonged.