The present invention discloses a cable positioning apparatus, including a base, a snap-fitting apparatus, and a cable clamp. The base includes a front side, a rear side opposite to the front side, and an end face connecting the front side and the rear side. The snap-fitting apparatus is arranged on the rear side of the base, and the snap-fitting apparatus includes a lock, where the lock is configured to retract to insert into a corresponding installation hole when external force is applied, and restore, when the external force is removed, to an initial position to be locked into the installation hole. Using the apparatuses according to the present invention, a cable is limited without using any other tool, thereby greatly reducing the time spent laying out and positioning a high density of cables.