A sliding door electrical wire guide module includes a sliding door and an electrical wire guide apparatus that are integrated with each other. The electrical wire guide apparatus includes: an electrical wire guide body for spanning a distance between a vehicle body and the sliding door and that is capable of undergoing curving deformation; a door-side bracket that is coupled to one end portion of the electrical wire guide body and is fixed to the sliding door; a body-side bracket that is coupled to the other end portion of the electrical wire guide body and is to be attached to the vehicle body, and a lock portion that is formed on the body-side bracket and is detachably locked to a receiving portion provided on the sliding door.