Abstract: A bead chain with modified structure, which is made by threading the beads of a specific shape to form a chain, and then joining the ends by means of buttons fixed at both ends, wherein some spacers are inserted between the beads to form an alternating pattern. The outer surfaces of the said spacers are engraved with lections, which are Sanskrit or Tibetan and the corresponding Chinese. The buttons at both ends of the bead chain are two separate half objects, which form a sphere or cylinder or the like after being joined. The outer surfaces of these half objects are engraved with lections. The bead chain according to the present invention reduces the cost.