A waterproof board laying trolley is specialized construction equipment designed for efficient installation of waterproof boards or membranes in tunnel and underground projects. It provides a stable and adjustable platform that allows workers to position and secure waterproof materials accurately along walls, ceilings, or floors. The trolley can move along the tunnel path smoothly, reducing manual labor and improving installation speed. Equipped with support frames, guide rails, and adjustable brackets, it ensures uniform alignment and proper contact of the waterproof boards with the tunnel surface. This equipment is widely used in railway tunnels, highway tunnels, hydropower projects, and underground utility corridors. By streamlining the waterproof board installation process, the trolley enhances construction efficiency, ensures long-term waterproof performance, and improves overall safety for workers operating in confined underground spaces. Its design allows flexibility for different tunnel sizes and construction requirements, making it an essential tool in modern underground engineering projects.