disclosed are a pulley structure and a damper pulley that prevent corrosion . the pulley structure may include a hub part that is fitted on a crankshaft rotated by power from an engine and rotates with the crankshaft and a pulley part coupled with the hub part to rotate with the hub part and connected with a power transmission member . the hub part may include a pulley contact surface facing the pulley part , and pulley coupling portions formed at the pulley contact surface to secure coupling members . the pulley part may include a hub contact surface facing the pulley contact surface of the hub part , hub coupling portions coupled to the pulley coupling portions by securing the coupling members , and coupling grooves recessed from the hub coupling portions to insert the coupling members . washers made of an insulator may be fitted on the coupling members between the pulley coupling portions and the hub coupling portions .