Researching the Documentary Evidence System of the Song Dynasty Again

Under background of modern transformation in Song Dynasty,the social factors of litigious custom developed contract system and developed notarizations in Song Dynasty had promoted developed documentary evidence system. The documented evidence was various in forms and rich in content,mainly consisting of official archives,contract and other category. The society of Song Dynasty came into being developed society of Song Dynasty and techniques of deterring forging and checkup. The documented evidence was widely used and became the king of evidencein civil justice in Song Dynasty. According to documented evidence in Song Dynasty,it is not difficult to see that Chinese traditional justice had strong certainty.