In order to clarify the evolution and failure patterns of fractures during the deformation and destruction process of favorable inclined fracture slopes, the PFC^2D numerical simulation software was employed to establish an irregular numerical analysis model using the split-top pushing method. An analysis of the deformation and destruction process of favorable inclined fracture slopes under constant slope top loading rate was conducted. By applying the proposed micro-fracture failure pattern recognition method based on the Mohr-Coulomb strength theory, the evolution mechanism and failure pattern of fractures were investigated, which initiated from the rock bridges between dominant fractures, developed towards the slope toe, extended towards the slope face and slope top, and ultimately formed a through-going failure surface dominated by tensile-shear fractures and supplemented by tensile fractures. The results indicate that the slope loading process can be divided into five stages: elastic, plastic, brittle drop, residual strength, and failure. The internal fracture evolution can be divided into four stages: initiation and development, extension and evolution, through-going, and sliding failure, with a good correspondence between the two. During the plastic stage of slope bearing capacity, it is the main stage for the initiation and connection of micro-fractures in rock bridges, while the post-peak strength stage is the main stage for fracture development and evolution, with micro-fractures accounting for 85.6% of the total fracture quantity. Especially during the brittle drop stage, the number of fractures increases dramatically, forming a potential failure surface. The deformation direction at the slope toe underwent a 20° counterclockwise deflection, manifesting as tensile-shear failure, while the slope top underwent a 35° counterclockwise deflection, manifesting as a mixed failure of tensile and tensile-shear. It is evident that if the derivation and expansion of fractures during the post-peak stage of slope bearing capacity can be reasonably blocked, the stability of favorable inclined fracture slopes can be effectively improved.