Abstract: To investigate the effects of axial loads, saturation levels, and particle size gradation on the compressive deformation and fractal characteristics of fault-fractured rock under confined conditions, this study utilized rock samples from a non-water-conducting fault in the Xingcun Coal Mine in Shandong. These samples were tested using a self-developed deformation-seepage experimental system for fractured rocks, focusing on compression tests of graded fractured rocks with different Talbol power index (n) values under confined conditions. The research results indicate that as axial loads increase incrementally, the axial displacement of fractured rocks increases, while the compression expansion coefficient and compaction degree decrease. Under identical confined axial load conditions, saturated samples exhibit greater axial displacement and cumulative deformation at the loading endpoint compared to dry samples. Additionally, an increase in the gradation index leads to larger cumulative deformation at the loading endpoint. The mass distribution coefficient C increases with the Talbol exponent n but decreases with increasing axial loads. The fractal dimension D of fractured rocks decreases as the Talbol exponent n increases, while the post-test fractal dimension increment also increases with n, indicating more severe rock fragmentation. Based on the mechanical and fractal characteristics of fractured rocks, their deformation process can be categorized into four stages: loose accumulation, dislocation compression, deformation cracking, and grinding fragmentation. During the early loading phase, deformation is primarily characterized by particle sliding, whereas in the later loading phase, it is dominated by particle grinding and fragmentation.