PURPOSE: A functional lightproof paper for dual side printing is provided, which makes texture smooth while not using adhesive. CONSTITUTION: A functional lightproof paper for dual side printing comprises a step of weaving the lightproof paper by inserting polyester thread vertically or horizontally; a refining step for refining the lightproof paper; a step of drying the refined lightproof paper at 120-200 deg.C for 1-60 minutes; and a step for drying the dried lightproof paper at 100-150deg.C after coating the dried lightproof paper with coating solution.
