南宋是中国历史上货币制度变革的一个关键期，其影响深远。南宋货币发行特点主要有两个：一是货币发行由金属铸币为主转向以纸币为主；二是货币币种增多，制度混乱不定。其背后的深层原因是巨大的国防压力以及由此带来的经济的残破。“,”It＇s appeared distinct characteristic on the domestic issue in Southern Song that produced very big effect to later ages. Through the investigation, this article thinks that the domestic issue in Southern Song had two characteristics, the first one is currency issued by a metal coins to note mainly; and the other one is the type of currency increased and distribution system was very confusing. And these characteristics on the domestic issue in Southern Song were huge defense pressure and so on.