The present invention relates in general to the field of livestock trailers, and more specifically, to a livestock trailer that utilizes an enclosed elevator platform for loading and unloading animals. The elevator platform is located within an elevator shaft inside the frame of the livestock trailer. The elevator platform is configured to protect and confine the livestock as it traverses through the elevator shaft during loading and unloading operations. The livestock trailer may further comprise a ventilation system, a sprinkler system and/or a watering system to help assist in the well-being, health, and safety of the livestock while being transported. The purpose of the invention is to provide a livestock trailer and method of loading and unloading livestock onto the livestock trailer that minimizes risk of serious injury to both animal and handler during loading, unloading and transportation operations.