When large near-horizontal coalfields adopt open-pit mining, the zonal mining mode is usually adopted. The transition and succession issue between the old and new mining areas is crucial to the economic benefits and production stability of the mine. Regarding the issue of turning and succession after the service life of the second mining area of Baorixile Open-pit Coal Mine ends, the research finds that the tight space for dumping, the long distance for stripping and transportation, as well as the challenges that may be faced in the next five years, such as excessively high internal dumping height, excessive transportation distance and increased costs, will significantly affect the overall benefits and sustainable development of the mine. Therefore, this paper focuses on the research of the reasonable transition and turning from the second mining area to the third mining area. By comparing the characteristics of the three turning methods of right-angle gentle side retaining gully, fan-shaped turning and re-pulling gully, combined with the Analytic Hierarchy Process to determine the weights of the four core indicators, the ELECTRE evaluation method is adopted to construct the harmony and disharmony matrix, and the priority level relationship is determined through threshold comparison. The system assesses the applicability of the three steering methods. The results show that the net advantage values of the right-angle gentle retaining ditch, the re-pulling ditch and the fan-shaped turning are 2, 0 and -2 respectively. The right-angle gentle retaining ditch performs the best in the evaluation by the ELECTRE evaluation method and is determined as the optimal choice for the turning in the mining area of Baorixile open-pit Coal mine