The work aims to evaluate the service life of a type of phenyl silicone rubber damping pad under the complex temperature environment of alternating warehouse storage and outdoor service. Thermal air accelerated aging tests of phenyl silicone rubber damping pads were conducted at different temperature to obtain the data of compression stiffness performance and calculate the reaction rate of multiple equivalent temperature in the warehouse storage-outdoor service environment to evaluate the service life of phenyl silicone rubber damping pads. At a confidence level of 99%, the retention rate of compression stiffness of the phenyl silicone rubber damping pads showed a modified exponential variation law with extended aging time, with a fast initial variation rate, and a reduced later variation rate. As the temperature increased, the crosslink density increased, reducing the damping capacity.Based on the Van't Hoff rule, the calculated service life of the phenyl silicone rubber damping pads in the alternating environment of warehouse storage and outdoor service is 28 years, providing methodological support for the service life prediction of similar products.