A field experiment was conducted to study the effects of drip irrigation with different magnetic water on soil salinity and nutrients, maize yield and quality and to determine the optimal magnetic intensity. The results showed that drip irrigation with magnetic water accelerated the elution of soil salts and improved the elution efficiency, increased maize yield by 4%-16.2%, promoted soluble sugar, protein and starch in maize ears and kernels by 1.4%-38.2%, 11.7%-39.6% and 9.6%-12.8%, respectively, compared with CK, and in which magnetic intensity of 1200-2400 Gs had the best effect. Thus, drip irrigation with magnetic water is an effective technique to be popularized in Xinjiang and similar regions.