Abstract: Flexural properties of hybrid composites reinforced by carbon fiber and basalt fiber were tested and the effects of hybrid ratio on the flexural properties were also analyzed, on the condition that basalt fiber was put on the compressive side. Three-point bending test was performed on the specimen to obtain the flexural properties and failure mode was observed by scanning electron microscopy. Compared with the pure CFRP specimen, flexural strength of the hybrid composites increases obviously, particularly as the hybrid ratio is 16.7% and 33.3%, the flexural strength increases by 12.4% and 15.2% accordingly. Meanwhile, the flexural modulus of hybrid composites decreases along with the increment of hybrid ratio. Fracture ductility enhances significantly and failure displacements of all hybrid composites and BFRP are higher than that of the pure CFRP. Furthermore, various failure modes can be observed on the compressive side, tensile side and middle layer of the hybrid composites.