A portable livestock panel system for effectively containing livestock in a humane manner. The portable livestock panel system includes a plurality of posts each having a plurality of receiver apertures and a plurality of fastener apertures, a plurality of cross members receivable within the receiver apertures of the posts, and a plurality of fastener members extendable through the fastener apertures within the posts and the cross members for securing the same. The posts and the cross members are preferably comprised of a resilient plastic material.