Abstract: Field experiments were carried out to study the effects of drip irrigation under mulch film (DIUMF) on soil ecology environment and growth of cotton. The results showed DIUMF changes humidity environment of cotton in the field, creates Beneficial water, fertility, air, hot Condition for the cotton's growth, Comparing with normal irrigation, DIUMF is helpful to decrease soil surface evaporation, increase soil water content, reduce deep leakage, hold soil fertility, enhance water use efficiency, and improve vegetable yield. Have the good economy, ecosystem and social performance.