The invention discloses a strain corner tower with a horizontal winding and jumping wire jumper for a two-loop compact power transmission line, which comprises an iron tower head, a tower body, a ground wire cross arm, upper, middle and lower lead cross arms, synthesized insulator hardware fitting strings and an auxiliary cross arm, wherein a group of ground wires are suspended on each of the twosides of the ground wire cross arm respectively, a ground wire auxiliary cross arm is fixedly arranged on each of the two ends of the ground wire cross arm, and the two ends of each ground wire crossarm are fixedly connected with the upper end of a set of synthesized insulator hardware fitting string; and the upper lead cross arm, the middle lead cross arm and the lower lead cross arm are arranged below the ground wire cross arm on the tower head from the top to the bottom, two phase leads are suspended on the two ends of each of upper, middle and lower lead cross arms respectively, all phase lead jumpers wind and jump towards the outside of the iron tower, the auxiliary cross arm is positioned below the lower lead cross arm, and the lower end of each set of synthesized insulator hardware fitting string is fixedly connected with the auxiliary cross arm. The strain corner tower has a compact structure, the weight and the engineering cost of the iron tower are reduced by about 30 percent in comparison with the currently used conventional iron tower, and the strain corner tower has high lightning protection performance and is widely used.