As early as the Paleolithic Age, man lived on the Hunan Liyang Plain and created the highly developed Paleolithic Lishui culture. Starting from the Pengtoushan culture, the Neolithic culture of this region maintained its continuity and progressiveness. It was greatly owing to the mutual promotion of favorable geographical environments, rather early rice farming and developed settlement in this area. These factors caused constant innovation in customary law and cultural aspect, and led to gradual development in social formation. However, due to the intrusion of external forces, this region failed to cross the threshold of civilized society.