Vacuum insulation panel (VIP) is fully developed in resent years as a new type of heat insulation material. In order to further improve the thermal insulation performance， prolong the service life and optimize the manufacture method of VIP， its service life is defined based on the introduction of constituents. And， the analysis model of service life is set up with the verification of ageing test under high temperature. The experimental results fit in with theoretical analysis， and it is found that the application of VIP under high temperature （50/70 ℃） will speed up the aging rate of the barrier (PET/NY/Al/PE)， which can provide the reference for the study of service life and practical application of VIP.