The invention relates to a micro-step reflector manufacturing method based on wedge-shaped glass strips and belongs to the technical field of cold processing of optics. The method includes the main processing steps that a wedge-shaped glass block and the n wedge-shaped glass strips are manufactured with the conventional optical part machining technology; the wedge-shaped glass strips are selected in order and arranged on the bevel of the wedge-shaped glass block in reverse angles one by one in an optical contact mode, and the contact faces of every two adjacent wedge-shaped glass strips are fixedly connected through ultraviolet glue; the subsequent wedge-shaped glass strip is pushed repeatedly in the horizontal direction until the step thickness difference between the adjacent wedge-shaped glass strips measured by a step thickness difference detector meets requirements, and then the ultraviolet glue is solidified by an ultraviolet lamp; finally, the step face of a micro-step reflector is plated with a reflecting film. The micro-step reflector manufacturing method based on the wedge-shaped glass strips solves the problems of manufacturing micro-step reflectors in high precision and thus provides technical support for obtaining a static Fourier transform spectrograph with high spectral resolution.