The invention discloses a technology for hoisting strip-shaped inclined steel structures in place through a single crane. The technology comprises the steps of 1, calculating the weight and the centre-of-gravity position of an inclined tie bar; 2, installing a main plate of a low position hoisting point and a main plate of a high position hoisting point in the length direction of the inclined tie bar; 3, connecting the upper ends of slings to a hoisting hook and arranging slide ropes at the two ends of the inclined tie bar; 4, arranging safety ropes at the two ends of a chain block; 5, hoisting the whole inclined tie bar slowly to leave the ground by the crane; 6, stopping the inclined tie bar for several minutes after the inclined tie bar is hoisted away from the ground by a half meter; 7, placing the inclined tie bar to the installation position and accurately assembling the inclined tie bar; and 8, welding and fixing the inclined tie bar for completing hoisting. According to the technology, the strip-shaped inclined steel structures can be accurately hoisted in place through the single crane, the problem that two cranes are needed for adjusting the inclination angles of the steel structures small in tonnage is solved, the construction cost is greatly lowered, the construction efficiency is improved, and the safety is improved.