The invention provides an oblique strain power transmission iron tower. A tower body 5 and a vertical direction has an included angle Theta, ground conducting wire hanging point vertical load and tower weight generate a clockwise bending moment for tower feet, the direction of the clockwise bending moment is opposite to the direction of bending moment of ground conducting wire hanging point horizontal tension to the tower feet, and thereby a bending moment value of the tower feet is greatly reduced. In an actual engineering, under the premise that the safety and the stability of the iron tower are retained, a combined bending moment value generated by the load to the tower feet is regulated by regulating the included angle Theta of the tower body and the vertical direction, and thereby the stress state of the iron tower is optimized. The oblique strain power transmission iron tower enables the ground conducting wire hanging point vertical load and the tower weight into beneficial loadfor the stress of the whole strain iron tower and optimizes the stress system of the strain iron tower.