Abstract: Through artificial accelerated aging and natural climate exposure aging test, the mechanical functions of Drip irrigation tape before and after aging were characterized by using tensile test method. In addition, their structural changes were analyzed by the infrared absorption, and the effects of aging-resistant additives to the mechanical performance of the irrigation tape were studied. Natural aging of 120 days and 0 days compared with the artificial aging of 12 days, the elongation retention of formula C were 84.7% and 83.2%; the elongation retention of formula C-0 were 59.8%, 58.2%; the main changes of molecular structure in the infrared spectrum curve are generated carbonyl peak with 1723cm-1. The results showed that adding self-made anti-aging master batch played anti-ultraviolet roles.