泥活字是世界上最早出现的用于印刷的活字,它是由北宋的毕昇所发明的。由于当时用这种方法印行的书籍没有流传下来,再加上泥活字印刷的工艺十分复杂,因此在很长一段时间里,人们甚至对泥活字印刷产生了怀疑。近来人们相继发现了清代李瑶和翟金生的泥活字印书,尽管时代较晚,但它毕竟证实了泥活字是可以用于印书的,因 Mudouzi is the first movable type in the world to be used for printing. It was invented by Bi Sheng of the Northern Song Dynasty. Due to the fact that the books printed in this way were not handed down and the printing process of mud-type printing was very complicated, people even had doubts about printing clay type printing for a long time. Recently, people have discovered the mud-type printed books by Li Yao and Zhai Jinsheng in the Qing Dynasty. Although the times are late, they have proved that mud-type characters can be used for printing