Abstract: Anti-slide piles are among the most effective measures for landslide control in geotechnical engineering. The selection of pile position has traditionally relied on qualitative assessment of the landslide sliding mechanism, while landslide thrust is quantitatively calculated mainly through inter-slice residual thrust methods. To better integrate the selection of anti-slide pile location with the calculation of landslide thrust, this paper proposes a pile positioning method based on the analytical computation of the point safety factor across the landslide body. After calculating the safety factor at each point within sliding blocks, the overall stability coefficient of the landslide was determined using a strength reduction approach, with the convergence criterion set as a safety factor of 1.0 at the anti-sliding section and zero supporting force required at the shear outlet block. The inter-slice forces were used to estimate the compression within slices, and the width of the trailing edge crack was correspondingly estimated. A dual-control index system was established by combining the spatial distribution of point safety factors and the allowable width of the trailing edge crack, enabling rapid identification of the optimal anti-slide pile position. The horizontal thrust between slices at the selected pile position under the design safety factor was then taken as the landslide thrust. Validation against ACADS standard test problems showed that the error in the overall stability coefficient calculated by this method, compared with traditional methods (Fellenius, Spencer, and Bishop Simplified methods),was less than 5%,demonstrating good consistency. For the Danba landslide case study, the accuracy of the trailing edge crack estimation method was verified through PFC-FLAC coupled numerical simulation. Moreover, the anti-slide pile position determined by the proposed method aligned closely with the design results from 3D numerical simulations used in engineering practice. The results indicate that this method not only unifies pile positioning and thrust calculation within the same mechanical framework, effectively overcoming the limitations of traditional empirical approaches, but also significantly simplifies the design process while maintaining computational accuracy. This approach provides robust theoretical support and a practical tool for the collaborative evaluation of local and global landslide stability, as well as for the efficient and reliable design of anti-slide piles.