The utility model discloses a tubular bus bar and conducting wire clamp which comprises a lower bracket, wherein a plurality of lower semi-circular grooves are formed at the top part of the lower bracket, the clamp further comprises an upper cover plate, an upper semi-circular groove is formed at the bottom part of the upper cover plate, and the upper cover plate is combined at the top part of the lower bracket through a screw; and mounting grooves are further formed on two sides of the lower bracket, and screw holes are formed at the bottom parts of the mounting grooves. The clamp has the advantages of simple structure, convenient mounting and routine maintenance and low cost, and can effectively clamp a conducting wire and keep the conducting wire horizontal by leading the upper cover plate and the lower bracket to constitute a circular hole by involution and fastening through a bolt, and effectively fix a tubular bus bar on a device and keep the tubular bus bar horizontal through a tubular bus bar groove at the bottom part of the lower bracket and the mounting grooves on the two sides of the lower bracket.