In order to strengthen the application foundation of domestic M55J carbon fiber in aerospace components， the interfacial properties of domestic M55J carbon fiber， aerospace epoxy resin and cyanate ester resin were significantly investigated， and compared with the import M55J carbon fiber. The surface morphology of carbon fiber was characterized by using scanning electron microscope and atomic force microscope. Furthermore， work of adhesion， wettability， chemical reaction characteristics and interfacial shear strength were examined by contact angle method， infrared spectroscopy and micro debonding test. The results show that there are a lot of grooves and a spot of sizing agent protuberance on the surface of domestic M55J carbon fiber. The wettability of domestic M55J carbon fiber with two kinds of aerospace resin is more superior than that of imported M55J carbon fiber， and the adhesion work between domestic M55J carbon fiber and two kinds of resin are 55.76 and 48.61 mN/m， respectively， which are higher than that of imported M55J carbon fiber. The extent of reaction of domestic M55J carbon fiber sizing agent with two kinds of aerospace resin can reach up to 100% after high-temperature curing. The interfacial shear strengths of domestic M55J carbon fiber and two kinds of aerospace resin are 74.62 and 62.99 MPa， respectively， which are higher thanc that of M55J carbon fiber.