The invention discloses a glass fiber special-shaped pultrusion preforming equipment for a wind power blade and a preforming technology, belongs to the field of pultrusion equipment, and aims to provide the pultrusion preforming equipment and the preforming technology which adopt a single-pass open type gum dipping process and can obviously reduce the glue solution dosage. The glass fiber special-shaped pultrusion preforming equipment comprises a feeding structure, an open type gun dipping structure, a preforming tool, a forming structure and a traction structure, wherein the open type gun dipping structure comprises a gum dipping groove and a gum grove plate; the gum dipping groove is filled with glue solution; the gum groove plate is perpendicular to the conveying direction of fabric andglass fiber; the preforming tool comprises a plurality of first preforming plates; each of the first preforming plates comprises a left fabric passage, a right fabric passage and a bottom fabric passage; the left fabric passage and the right fabric passage are arranged in an angle gradual change manner; a plurality of first glass fiber through holes are formed in an area defined by the left fabric passage, the right fabric passage and the bottom fabric passage; and second glass fiber through holes are formed in the lower part of the bottom fabric passages. The glass fiber special-shaped pultrusion preforming equipment is suitable for pultrusion of glass fiber special-shaped pieces.