Tibet Nationality' s Blessing Song for Weddings in Muli County, which has been delivering the knowledge and techniques, is a reflection of the peculiar economic developing history of how Tibet Nationality' s ancestors invented the primitive agriculture, invented and developed the craft, created and improved the tools, and increased the productivity. In addition, the song shows the excellent tradition that all nationalities in Muli County have been solidified, helping each other and creating human's material civilization, affirms the economic and ethnic values of Tibet nationality's tradition, and has some economic values.