The utility model provides a twin V-shaped porcelain insulator string with a single hanging point and two wire clamps for +/-500 kV double-circuit lines on a same tower, and relates to an insulator suspension string. Through the spatial combination and connection of a quadrifid link plate and the insulator strings, the requirement that a conducting wire is separate into eight parts is realized, and the occurrence that the insulator string is easy to clamp during one link unloading after the deviation along the lines and off-ice jumping is avoided. The twin V-shaped porcelain insulator string with the single hanging point and the two wire clamps for the +/-500 kV double-circuit lines on the same tower comprises two groups of V-shaped suspension insulator strings. One end of each insulator string of each group of suspension insulator string is connected with a same link plate sequentially through a ball head hanging loop and a right angle hanging plate. The link plate is sequentially connected with right angle hanging plates, a DB type adjusting plate, U-shaped hanging loops and an EB hanging point hardware fitting. The other end of each insulator string of each group of suspension insulator string is connected with a same LF link plate through a bowl head hanging plate. Each LF link plate is respectively connected with two parallel quadrifid suspension link plates through two right angle hanging plates. The twin V-shaped porcelain insulator string with the single hanging point and the two wire clamps for the +/-500 kV double-circuit lines on the same tower uses the connection mode with the single hanging point, and satisfies the strength and stability requirements for the conducting wire separate into eight parts.