A parking brake apparatus for activating a break unit includes a base member; an operating lever supported on the base member for generating an operating force when the operating lever is operated so that the operating force is transmitted to the brake unit through a break cable; an inputting member to be rotated with the operating lever; an intermediating member disposed separately from the inputting member for interconnecting the inputting member and the brake cable; and a connection member for connecting the intermediating member and the inputting member. Accordingly, the intermediating member transmits the operating force to the brake cable from the connection member.