Introduction to Qunyutang: "Qunyutang Tie" was engraved during the Jiatai and Kaixi years of the Southern Song Dynasty (1201-1207). It was originally called "Yegutang Tie" and later changed to "Qunyutang Tie". It has ten volumes in total. The complete text is no longer available today. Book. This re-engraving uses the fragments of the Song Dynasty's "Qunyu Tang Tie" collected by the Palace Museum, as well as fragments of old collections and fragments, which is extremely valuable. A total of 22 works. The plaque in front of the hall is a copy of the calligraphy of Wang Duo, a famous calligrapher and painter in the late Ming and early Qing dynasties.