The invention discloses a component adhesive bonding structure and component separation method, which can separate many components which are combined by adhesive bonding structures. A configuration includes the adhesive member to adhesively bond components together and a thermo-expandable material to expand upon being heated in the way of being disposed between at least one of the components adhesively bonded together by the adhesive member and the adhesive member and to push the adhesive member in a direction of getting apart from at least one of the components. The invention is used for easily separating many components which are combined by adhesive bonding structures, and the residual adhesive bonding structures on the component is less.