A yellow, Gram-stain-negative, aerobic, non-spore-forming, motile, and rod-shaped bacterial strain designated M6^T was isolated from fully weathered granitic soil. The strain showing the highest 16S rRNA gene sequence similarity to M6^T was Sandaracinobacteroides hominis SZY PN-1^T (96.3%), the only species in the genus Sandaracinobacteroides. The average nucleotide identity and digital DNA-DNA hybridization value between these two strains were 72.6% and 18.0% respectively. Growth was inhibited by NaCl (≥0.1% (w/v)). Strain M6^T contained C_18:1ω7c (33.8%), C_14:0 2-OH (16.6%), summed feature 3 (15.8%), and C_16:0 (12.6%) as the major fatty acids. The polar lipids profile consisted of phosphatidylglycerol, phosphatidylethanolamine, an unidentified glycolipid, four unidentified phospholipids, and four unidentified lipids. The genome of strain M6^T was 3.4 Mb with 67.7% GC content. Further genomic analysis revealed a biosynthetic gene cluster for zeaxanthin, the production of which was verified by a high-resolution mass spectrum. The existence of multiple genes for aromatic ring-hydroxylating dioxygenases implies the potential ability for organic pollution controlling. The morphological, physiological, chemotaxonomic, and phylogenetic analysis clearly distinguished this strain from its phylogenetic neighbors, thus strain M6^T represents a novel species of the genus Sandaracinobacteroides, for which the name Sandaracinobacteroides saxicola sp. nov. is proposed. The type of strain is M6^T (=CGMCC 1.19164^T=NBRC 115420^T).