Abstract: According to thermal insulation mechanism of vacuum insulation panels (VIP), service life evaluation model of VIP was established and service life of VIP with glass fiber core materials was predicted by the model. Accelerated aging model of VIP was proposed based on Arrhenius law, these parameters of which were determined by aging experiments. In addition, the activation energy of VIP was also obtained. The service life of VIP at different temperatures can be predicted by accelerated aging model. The reliability of two models was verified by the tracking test results of test sample. The methods of improving the thermal insulation performance and prolonging the service life of VIP were discussed. The scientific research work in this paper provides theoretical basis and technical support to optimize key technology and process parameters of VIP.