The heating tube of the stainless steel electric water heater is made of 304 stainless steel material, filled with nickel chromium and other electric heating alloy wires and magnesium oxide powder. Its production requires processes such as shrinking, cutting, winding, and assembly, and has advantages such as corrosion resistance, high heating efficiency, and good insulation and thermal conductivity, which can effectively ensure the heating function of electric water heaters.