The reinforced slope stability of a wharf in Xiangjiaba reservoir was taken for research.Based on simplified Bishop theory,the reinforced slope stability limit state function was build,and the Monte Carlo simulation was used in soil density ρ,shear strength c,φ,reinforced material strength and water parameters such as random sampling and reliability analysis of slope.Finally,the influence analysis of values of the mean slope safety factor and reliability index by the soil c,φ affect the correlation coefficient was done,which obtained some useful conclusions.