With recent advancements, three-dimensional finite element method (FEM) numerical analysis has gained prominence in evaluating slope stability. Soil reinforcement using geotextile and natural fibers has been extensively used to enhance soil stability in recent days. The impact of the dilatancy angle (ψ′) on such analyses remains relatively less explored. This work is carried out by developing a three-dimensional soil slope model using jute reinforcement by utilizing FE software with an integrated strength reduction technique to study the effect of the dilatancy angle on the factor of safety of soil slope. The current study examines the efficiency of soil reinforcement using jute geotextile, under varying dilatancy angles. The results demonstrate a substantial increase in the factor of safety with an increase in dilatancy angle until it reaches the value equal to the angle of internal friction.