A bait rigging system is used to mount a bait fish onto a fishing line. The system includes a tubular body and a line-securing clamp. The tubular body can be inserted into the mouth of a bait fish in order to guide the fishing line through the bait fish. The line-securing clamp is mounted into the tubular body and is used to lock the tubular body onto the fishing line. The system also includes a weight adjustment arm and a weight. The weight is connected to the weight adjustment arm and causes the bait fish sink. The weight adjustment arm is connected to the tubular body and may be rotated to compensate for different sized bait fish. An arm spike is connected to the weight adjustment arm and is used to secure the weight adjustment arm to the bait fish by piercing the mouth of the bait fish.