Prior to the times of Jiajing (A.D.1521-1566), Japanese swords were often imported into China as tributes, trading goods and complimentary gifts, but there was no record that Chinese troops or civilians had learned and widely used Japanese swordplay, except for the imperial guards. Since the year of Jiajing 31 (A.D.1552), the massive Japanese invasion of the southeast coast of China made Chinese people notice the advantage of Japanese swordplay. Meanwhile Chinese army and civilians who loved Chinese wushu needed better sword skills,therefore Japanese swordplay became rapidly known and absorbed by them and spread among the folk people. At that time some members of the Chinese army were equipped with Japanese long swords; the warriors used cane shields, and the archers and the cavalry were equipped with Japanese waist broadswords. Training involved the repetition of solo patterns or routines first, followed by matches with other people. Some civilians who learned Japanese swordplay exercised mainly the routines, others mainly practiced a single pose or stance. The kind of Japanese swordplay that spread among civilians could be divided into two types: in one, people were trained by original Japanese swordplay; in the other one, people practiced Japanese swordplay with Chinese swordsmanship together, integrating Chinese swordplay and Japanese swordplay into a new kind of swordplay. In both cases, the practice of Japanese swordplay introduced into China was characterized by the use of patterns or routines.But the routines used by the Chinese army and the folk people were greatly different. In the army, the routine was laid out from the perspective of group training, so it was brief and simple; while the folk routine was laid out from an individual point of view, so it was long and complicated.