The present invention relates to a method for manufacturing penetrated water-proofing material for water-proof zipper. Said method includes the following steps: combining upper die and lower die, injecting PU adhesive into die cavity of upper die, making the zipper be passed through lower portion of die cavity so as to make the PU adhesive be penetrated into the tape cloth of zipper, and utilizing lower edge of upper die to form a doctor blade portion, when the zipper tape is conveyed, using said doctor blade to scrape off excessive liquid PU adhesive and make it be formed into a layer of film on said zipper tape so as to obtain the zipper with water-proofing function.