The invention discloses an optical fiber coupling module and relates to an optical component in an active optical cable. An active optical cable in the prior art has defects such as large module size, a limited number of transmitting and receiving ports, complex process and the like. According to the optical fiber coupling module, a 45-degree oblique end surface optical fiber array is coupled to a laser array; a flat end surface optical fiber array is coupled to an optical detector through a right-angle prism and a micro lens array; and a transmitting assembly and a receiving assembly are integrated in one module. The optical fiber coupling module has the advantages of compact structure, high density interconnect and simple process.