The invention relates to a polymer alloy waterproof coiled material and a production method thereof. The coiled material comprises an alloy plate layer and a polymer material layer, which are integrated together. Two side surfaces of the alloy plate layer are both painted by an anti-oxidant material. At least one side of the waterproof coiled material is provided with a waterproof anticorrosion self-adhesive rubber layer, whose external side is covered by a silicone oil membrane. The waterproof anticorrosion self-adhesive rubber is composed of the following components in percentage by weight: 20 to 45% of thermoplastic butadiene styrene rubber, 10 to 35% of aromatic hydrocarbon oil, 3 to 25% of thermoplastic solid acrylic resin, 3 to 5% of antirust antiseptic, and 8 to 19% of talcum powder. The coiled material has the advantages of good waterproofness, good corrosion resistance, UV resistance, low temperature resistance, aging resistance, puncture resistance, and quickness for construction, is a novel waterproof material that can be perfectly bound and integrated with buildings, is suitable for various construction projects such as subways, tunnels, bridges, roads, underground projects, roofs, and the like, and is especially suitable for waterproof projects on the surface layer of plant roots.