China's wood movable type printing is one of the oldest printing technologies in the world. This technology is preserved in Rui'an, Zhejiang, where it is still used to compile and print genealogies. Men are trained to complete the carving of Chinese characters, and then print after the process of carving, picking up characters, and arranging characters. This requires a wealth of historical knowledge and ancient Chinese grammar. Women are responsible for paper cutting and binding until the family tree is printed. The movable type pages can be used repeatedly after being disassembled. In spring, summer, autumn and winter, craftsmen carry sets of wooden movable type and printing tools and walk in local communities, from one ancestral hall to another. They print the genealogy by hand. After the printing of the genealogy is completed, there is a special ceremony, and the printing craftsmen put it away and lock it in a box for preservation. Wood movable type printing is passed down entirely through family inheritance. However, the intensive training required for this technology, the low income it generates, the popularization of contemporary computer printing technology, and the decreasing interest in printing family trees have all led to a rapid decline in the number of craftsmen who master this technology. Currently, there are only 11 masters over 50 years old who have mastered the full set of techniques. If it is not protected, this traditional industry skill will soon disappear.