The invention provides a hollow U-shaped glass strip forming production line. The production line comprises an uncoiling device, a cutting device, a steel belt conveying device, a flanging forming device, a traction device, a gluing device, gluing heads, a pressure disc pump glue supply device A and a pressure disc pump glue supply device B; a plurality of unwinding reels of the uncoiling device are winded with a stainless steel band; when the stainless steel band enters the position of a cutting device, two sides of the stainless steel band are cut to form bent corners; when the stainless steel band advances to the flanging folding device, the two sides of the stainless steel band are flanged to form a U shape; when the stainless steel band advances to the gluing device, the gluing head A supplies water-absorbent and damp-proof glue, the gluing head B applies reaction type butyl sealing glue onto two sides and three surfaces of the bottom of a U-shaped strip, and a hollow U-shaped glass strip is formed. The production line improves the production efficiency, lowers the production cost and saves energy, and the U-shaped strip produced by utilizing the equipment solves the problem of low heat-insulating property of hollow glass, and improves the heat-insulating property and service life of doors and windows.