The present invention relates to an adhesive composition and more specifically, to an adhesive composition which exhibits excellent durability in severe conditions (high temperature and humidity) and excellent adhesion by including isocyanurate-based compounds of a chemical formula 1 and is able to stably maintain material properties in processing condition change. [The chemical formula 1] In the formula, R1 is or . R2 is an alkyl group of C1-C6 or an alkoxy group of C1-C8. R3 and R4 respectively are a hydrogen atom or an alkyl group of C1-C6.
