Introduction to the stone tablet: This wall suffered some damage in 1958 and during the "Cultural Revolution", and was later discovered by the provincial archaeological team in 1982. In 1984, it was listed as the fourth batch of provincial cultural relics protection units. From 2004 to 2005, Mr. Shu Aiwen, the former Swiss Ambassador to China, donated funds for restoration. In recent years, it has been restored to its original appearance.