The invention relates to a drug packaging material, and especially relates to a composite film for drug packaging. The composite film for drug packaging has a polyamide film and an aluminum foil layer, the aluminum foil layer is fixed under the polyamide film, the polyamide film is bound with the aluminum foil layer through an aqueous adhesive layer, and the aluminum foil layer is connected with a biaxially oriented polypropylene layer. The composite film for drug packaging has the advantages of stable operation process, energy saving, consumption reduction, environmental protection, no residual, distinct gradation, beauty, pressure resistance, large compounding adhesion, close compounding, no bubbles, no fracture, large peeling strength, impact resistance, and stable quality; and color printing of the external layer of the composite film can be carried out to increase the publicity effect, and packaging equipment in the invention is cheap, so the cost is cheap.