The analysis of overall stability for the restricted channel bank slope has some problems,such as the complexity of internal force,the variety of calculation methods,and the difficulty in quantifying the anti-sliding effect by pile and soil interaction.Based on the project practice for anti-slide piles analyzing in the project of the Changhushen line channel expansioning (Zhejiang section),we summarize a simple calculation method for anti-slide piles in the overall slope stability by establishing multiple sets of model data for the typical bank protection section.We also compare the force analysis,summarize the various failure modes of anti-sliding piles in the overall slope stability for the restricted channel bank slope,and analyze the position and characteristics of the most unfavorable slope circle formation and the reference of the relevant results in the theoretical study of anti-sliding piles.Finally,we obtain the effective inner force due to pile and soil interaction in the anti-sliding process.