Steel brace manufacturing bed of which height can be adjusted through single person operation

The utility model discloses a steel brace manufacturing bed of which the height can be adjusted through single person operation. The steel brace manufacturing bed is provided with an operating desk, four foot rib fixing columns, two vertical columns fixed to the operating desk, multiple sets of positioning wheels and a positioning rod with a balance weight ball. Two positioning wheels installed on the two vertical columns respectively are arranged in each set and respectively provided with a clamping groove, the four foot rib fixing columns are divided into two sets, two foot rib fixing columns are arranged in each set, and all the foot rib fixing columns are fixedly installed on the operating desk. The middle of the positioning rod is hinged to a supporting box on the operating desk. The inner side end of the positioning rod is limited by an upper reinforcement of a steel brace, the upper reinforcement of the steel brace is fixed by the positioning rod and the clamping grooves of the two positioning wheels i