The invention discloses waterproof equipment for ultra-deep buried water guide tunnels. The waterproof equipment comprises two upright columns. Rollers are fixedly mounted at the bottoms of the two upright columns, the lower surface of a transverse plate is fixedly connected with the tops of the two upright columns, a side surface of each worktable is fixedly connected with the outer side surface of the corresponding upright column, two guide rods are arranged above the transverse plate and are symmetric with each other around the central axis of the left side surface of the transverse plate, two ends of the two guide rods are fixedly connected with the ends, which are far away from the corresponding upright columns, of the upper surfaces of the two worktables, and two support rods are fixedly connected with the inner side surface of each guide rod. The invention further discloses a waterproof method for the ultra-deep buried water guide tunnels. The waterproof equipment and the waterproof method have the advantages that a mounting block is arranged between two sliders in a fixedly connected manner, a spray nozzle is mounted in a mounting hole in the mounting block, accordingly, concrete can be conveniently sprayed on the tunnels pertinently for the arc-shaped inner walls of the tunnels, promotion of waterproof engineering can be facilitated, and the tunnel concrete spraying quality and efficiency can be improved.