Abstract: The invention relates to a method for producing an optical fiber coupler, having the following method steps: combining two or more light-guiding fibers (1, 2, 3) to form a fiber bundle; introducing the fiber bundle into a capillary (4); collapsing the capillary (4) onto the fiber bundle surrounded by the capillary. It is the object of the invention to provide an improved method for producing an optical fiber coupler. The method is intended to enable the positioning of the fibers within the capillary to be as precise as possible. At the same time, it should be possible to implement the method with comparatively little effort. To this end, the invention proposes that at least one of the fibers (1, 2, 3) is connected at the end to a guide body (5, 5?) whereof the diameter in the direction transversely to the longitudinal extent of the fiber (1, 2, 3) is larger than the diameter of the fiber (1, 2, 3) and smaller than the internal diameter of the capillary (4).