Abstract: We use carbon fiber-glass fiber in layer knitting in the warp hybrid unidirectional fabric with different mixed ratio to prepare hybrid fiber reinforced epoxy composites, the tensile property change and failure form of carbon fiber-glass fiber/epoxy composites with different hybrid structures and different mixed ratios were studied. The 0° tensile results show that in different hybrid structures of same hybrid fabric, completely aligned structure with the concentrations of carbon fiber has the highest strength, the strength of fabrics with different mixed ratios of completely aligned structure is the same. The modulus of carbon fiber-glass fiber/epoxy composites follow the laws of mixing. The 90° tensile results show that the interface bonding strength between fiber and resin is carbon fiber/resin > glass fiber/resin, the strength and modulus of carbon fiber-glass fiber/epoxy composites relate to the different interface forms on material thickness direction (single or alternating interface, the distribution position of carbon fiber or glass fiber), and the content of carbon fiber has nothing to do with it.