The invention provides an optical fiber coupling module of a platform-type turning and reflecting single-tube semiconductor laser and belongs to the technical field of laser; the optical fiber coupling module comprises a bearing platform (1), a plurality of groups of single-tube semiconductor lasers (2), a plurality of fast axis collimators (3), a plurality of slow axis collimators (4), a plurality of turning and reflecting prisms (5), an ordinary reflecting prism (7), a beam-combining prism (8), and fast/slow axis focusing lens combinations (9) and (10) and an optical fiber coupling head (12); each group of the single-tube semiconductor lasers comprises a plurality of the single-tube semiconductor lasers; each single-tube semiconductor laser corresponds to one fast axis collimator, one slow axis collimator and one turning and reflecting prism; all the optical devices are laid on the bearing platform without steps and pedestals; the light-emitting positions of the single-tube semiconductor lasers are located at the same height; the light beams emitted by the single-tube semiconductor lasers are subjected to the collimation, turning and reflection, beam-combination and focusing processes through the optical devices and finally are coupled to the optical fiber coupling head.