The utility model discloses a forklift-based pipe clamp assembly for mounting a vertical integral prefabricated pipe group, which relates to the field of electromechanical equipment and pipeline construction equipment of large equipment rooms, and adopts the technical scheme that the pipe clamp assembly comprises an upper fixing plate and a lower fixing plate, and corresponding bolt holes are formed in four corners of each of the lower fixing plate and the upper fixing plate; a T-shaped plate and an L-shaped plate are arranged on the upper surface of the upper fixing plate; the T-shaped plateand the L-shaped plate each comprise a transverse plate and a vertical plate, and the transverse plates of the T-shaped plate and the L-shaped plate are arranged in the middle of the upper surface ofthe upper fixing plate. The utility model has the beneficial effects that the mechanical operation degree of the assembly of the vertical integral prefabricated pipe group is improved; the overall installation speed of the equipment room is increased; mechanical precise operation is adopted, and the overall construction quality of the equipment room is improved; a high-altitude hoisting hoist anda lifting hook are not needed, and the construction technological process is simplified; high-altitude operation is greatly reduced, and the occurrence probability of safety accidents is reduced; thenumber of operators can be greatly reduced, and the construction cost is effectively reduced.