The invention discloses a temporary power supply erecting system for decoration construction, which comprises hanging brackets (1), suspenders (2), calabash-shaped ceramic blocks (3) and a cable (4), wherein the hanging brackets (1) are fixed with a floor structure; the ceramic blocks (3) are arranged on the hanging brackets (1); the suspenders (2) are fixed with the floor structure; the calabash-shaped ceramic blocks (3) are arranged on the suspenders (2); the plurality of hanging brackets (1) and the plurality of suspenders (2) are distributed along a planned route of a power supply system; and the cable (4) is mounted on the calabash-shaped ceramic blocks (3) through ribbons (8). The temporary power supply erecting system for the decoration construction provided by the invention can increase the function efficiency of temporary power supply facilities and need not continuously adjusting the temporary power erecting position, so that the engineering management cost, the labor cost and the material cost are reduced, and the system is safer.