In this research, the adhesion between ethylene methyl acrylic (AEM) rubber and polyester fabric treated with isocyanate and the fatigue properties of the AEM rubberpolyester fabric composites were examined. Experiments were conducted according to the concentrations of isocyanate adhesive solution in order to determine the optimum concentration of the adhesive agent and the results showed that adhesion was the most superior when 14% solution was applied and this was also confirmed by Scanning electron microscope morphology. Moreover, the impregnated polyester fabric was treated at 120, 170, 200, and 230 degrees C and peel test was conducted in order to determine the optimum curing condition. The results showed that adhesion was the most superior when the polyester fabric was cured for 2min at 230 degrees C. It was judged that this resulted from the network structure of isocyanate and the formation of carbodiimide structure at the curing temperature of 230 degrees C. Comparing to the fatigue properties of the rubberfabric composites from single dip system and the double dip system, the crack number and the accumulated crack length, the crack propagation was lower when the double dip system was applied. This resulted from the flexibility of the interphase of the polyester fabricAEM rubber composites by the application of resorcinol-formaldehyde-latex (RFL).