Electric box supporting device

The utility model belongs to the technical field of building construction, and discloses an electric box supporting device. The electric box supporting device comprises a plurality of first supporting assemblies, the first supporting assemblies are arranged in an electric box at intervals in the first direction, each first supporting assembly comprises a supporting sleeve, a supporting rod and an adjusting piece, one end of the supporting rod penetrates into the supporting sleeve, and the other end of the supporting rod extends out of the supporting sleeve; the adjusting part is arranged on the supporting rod in the mode that the installation position is adjustable, the adjusting part abuts against the edge of the supporting sleeve, and the length of the part, stretching out of the supporting sleeve, of the supporting rod can be adjusted by adjusting the installation position of the adjusting part on the supporting rod. The ends, away from each other, of the supporting sleeve and the supporting rod are tightl