Miao's silver ornament manufacturing technology has a long history and has undergone the evolution from primordial ornament to stone and shell ornament, from plants and flowers to gold and silver. Today's silver ornaments with basic fixed patterns and shapes are the result of so many years' passing down and inheritance. Their type and pattern are still renovating ceaselessly today. The ornament chain formed on such basis has already become one of the symbols of Miao's social progress. The Miao people worked hard all the year round and made nearly all the silver currency they had earned into ornaments. Therefore, the silver content of each place' ornament is equivalent to that of local silver currency. For instance, in the period of Republic of China, the southeastern area of Guizhou Province could be divided into two parts by Leishan Mountain. In the north area, people used Dayang (a kind of silver currency) to make ornaments, so their silver purity was high, while in the south area, Erhao (a kind of silver currency) was used, so the ornaments they made contained less silver. Since the 1950s, the Chinese government has showed great respect to Miao people's custom and appropriated dedicated silver to them at a low price every year.