The invention discloses a special high-strength waterproof coating for high-speed rail. The special high-strength waterproof coating for high-speed rail is prepared from the following raw materials in parts by weight: 82-88 parts of polyether polyol, 10-20 parts of p-phenylene diisocyanate, 1-5 parts of triisooctyl phosphite, 1-5 parts of aluminum tripolyphosphate, 5-15 parts of silicone powder, 0.1-0.5 part of n-octyl triethoxy silane, 0.3-0.9 part of dibutyl tin diacetate, 5-15 parts of inorganic antibacterial agent and 1-5 parts of ultraviolet absorbent. The special high-strength waterproof coating for high-speed rail, disclosed by the invention, has the advantages of simple and stable construction technology, low cost and excellent mechanical property, waterproof property, antibacterial property and weather resistance and can be applied to the concrete protection of high-speed rail.