Getter is an indispensable component of vacuum insulation panels (VIPs)， especially for glass fiber or polymer foam core materials， thermal conductivity of which is sensitive to the pressure change. In this paper， based on the VIP with glass fiber core material， the residual gas composition is analyzed and the composite getter is investigated， including chemical composition， preparation process and performance parameters. The sorption capacities of getter are measured using a dedicated apparatus， and the sorption process and mechanism are also discussed. It is found that the thermal conductivity of VIP with composite getter is lower and its service life is longer than that of VIP without composite getter.