The present invention relates to a pressure-sensitive adhesive composition for optical filter used in Plasma Display Panel (PDP), a pressure-sensitive adhesive film, an optical filter and a PDP panel display device, using the same. More specifically, the present invention relates to a pressure-sensitive adhesive composition having a dynamic storage elastic modulus of 5 x 10 3 ~ 5 x 10 4 Pa and a dynamic loss elastic modulus of 5 x 10 2 ~ 5 x 10 3 Pa, at a temperature of 3O 0 C and a frequency of 0.01 Hz, and a dynamic storage elastic modulus of 8 x l0 3 ~ l x l0 5 Pa and a dynamic loss elastic modulus of l x l0 3 ~ 5 x l0 4 Pa, at a temperature of 3O 0 C and a frequency of 500 Hz. The pressure-sensitive adhesive according to the present invention and the optical filter applied by the adhesive comply with endurance reliability under high temperature/high humidity conditions, do not cause fine bubbles on bonding the optical filter directly to PDP and have excellent re-workability in adhering processes.