The utility model discloses a special support for screwing an electric box bolt. The special support for screwing the electric box bolt comprises a rectangular support body, wherein a left supporting plate and a right supporting plate are arranged on the left side of the rectangular support body and the right side of the rectangular support body respectively, the left supporting plate and the right supporting plate are connected with the rectangular support body in an integrated mode, multiple L-shaped installation plates are fixed to the side face of the left supporting plate and the side face of the right supporting plate respectively, installation holes are formed in the L-shaped installation plates, a fixing plate is fixed over the front end of the rectangular support body, an L-shaped plate is fixed to the front end of the fixing plate, a fixing boss is arranged over the left side of the rectangular support body and is used for preventing an electric box from rotating along with a torsion gun, an inverted-L-shaped plate is fixed to the fixing boss, and a through hole is formed in the right side of the rectangular support body. According to the special support for screwing the electric box bolt, the situation that a worker is injured when the moment of torsion is increased during on-site operation is avoided, the production efficiency is effectively improved, on-site production feedback is good, the yield in a workshop is effectively guaranteed, safety of workers is effectively guaranteed, the number of supporting points is reduced, and the electric box can be installed and fixed conveniently.