The invention discloses a special long-acting slow-release bird repellent for power and a high-speed rail. The bird repellent comprises the following components in parts by weight: 1-6 parts of musk-T, 0.5-20 parts of cinnamamide, 0.5-5 parts of 1-naphthol, 0.25-2 parts of bisphenol A, 0.01-1 part of a preservative, 0.5-2 parts of an antifreeze agent, 25-60 parts of N-alkyl substituted acrylamide, 1-20 parts of a crosslinking agent and 0.5-3 parts of an initiator. The low-toxicity bird repellent composition is uniformly planted into a gel system by in-situ embedment in a cross-linking polymerization process of the N-alkyl substituted acrylamide, so that the technical problem that an existing universal bird repellent product is high in cost, low in efficiency and poor in weather fastness is solved.