An interlocking brake structure for a saddle-type vehicle, the brake structure comprising: a vehicle body frame that includes a main frame extending rearward with respect to a vehicle body from a head pipe, a center frame extending downward with respect to the vehicle body from the main frame, a seat frame extending rearward from the main frame, and a sub frame connecting each of the seat frame and the center frame to each other; a front wheel brake for braking a front wheel; a rear wheel brake for braking a rear wheel, the front wheel brake and the rear wheel brake each being constituted by a drum brake, the front wheel brake being disposed on a left side of the vehicle body; a rear wheel brake operation element, for activating the rear wheel brake, which is disposed on a right side of the vehicle body,; and an interlocking brake cable whose one end is connected to the rear wheel brake operation element via an equalizer, wherein the interlocking brake cable has a curved portion formed to be curved in a protruding manner rearward from the equalizer side, followed by extending forward, and the other end of the interlocking brake cable extending forward is connected to the front wheel brake, so that a braking force is applied to both of the rear wheel brake and the front wheel brake in response to operation of the rear wheel brake operation element, cha racterized in that the curved portion includes a forward extending portion extending forward from a rear end of the curved portion, and a rearward extending portion extending rearward from the equalizer side, and a plate-like member is provided between the curved portion and the vehicle body frame, and the plate-like member is provided with a first rib for guiding the rearward extending portion, and a second rib for guiding the forward extending portion. a vehicle body frame that includes a main frame extending rearward with respect to a vehicle body from a head pipe, a center frame extending downward with respect to the vehicle body from the main frame, a seat frame extending rearward from the main frame, and a sub frame connecting each of the seat frame and the center frame to each other; a front wheel brake for braking a front wheel; a rear wheel brake for braking a rear wheel, the front wheel brake and the rear wheel brake each being constituted by a drum brake, the front wheel brake being disposed on a left side of the vehicle body; a rear wheel brake operation element, for activating the rear wheel brake, which is disposed on a right side of the vehicle body,; and an interlocking brake cable whose one end is connected to the rear wheel brake operation element via an equalizer, wherein the interlocking brake cable has a curved portion formed to be curved in a protruding manner rearward from the equalizer side, followed by extending forward, and the other end of the interlocking brake cable extending forward is connected to the front wheel brake, so that a braking force is applied to both of the rear wheel brake and the front wheel brake in response to operation of the rear wheel brake operation element, cha racterized in that the curved portion includes a forward extending portion extending forward from a rear end of the curved portion, and a rearward extending portion extending rearward from the equalizer side, and a plate-like member is provided between the curved portion and the vehicle body frame, and the plate-like member is provided with a first rib for guiding the rearward extending portion, and a second rib for guiding the forward extending portion.