Abstract: To resolve the problem of hoisting large-scale slender reinforced concrete columns during the construction of power stations or industrial workshops, an optimal scheme to finish the whole erection of the columns is studied and the corresponding software is developed. Mathematical models for the internal forces of double-crane and double-rope system are established. The hoist point positions are selected as design variables for the optimal model. The objective of the analysis is to minimize the maximum internal force (bending moment) in the course of handling columns to the upright position. The constraints are imposed by the penalty strategy. By grid method and genetic algorithm, the optimal problem is resolved. In addition, the best rope system is determined by comparing the computational results of initial rope systems under respective best hoist points. A practical example is presented to demonstrate the effectiveness of the technique. Results show that the peak of maximum moment is decreased by about 30% after reasonably choosing the rope system, pickup point arrangement and rope element length.