The present application may provide a pressure-sensitive adhesive composition, which has excellent durability in a high-temperature or high-humidity condition, which exhibits excellent adhesion with an optical film, and which thus can form an adhesive having excellent cutting property, re-workability, etc. In addition, the present application may provide an adhesive composition that can form an adhesive, which can effectively suppress bending even when applied to a thin substrate, such as a glass substrate having a very small thickness, which requires a minimized time for stabilization of physical properties, and which can prevent degradation of the secured physical properties as time elapses, an adhesion-type optical member formed using the adhesive composition, an optical laminate, and a display device.