Prestress tensioning support capable of effectively protecting hydraulic jack

The utility model discloses a prestress tensioning support capable of effectively protecting a hydraulic jack, which belongs to the field of engineering construction, and comprises a steel pipe, a cross fastener, a bamboo plywood and an adjustable jack rail rod, and the steel pipe is spliced into the tensioning support through the cross fastener. An adjustable jack rail rod is installed at the topof the tensioning support, a hydraulic jack protection box frame rod is installed below the rear portion of the tensioning support, the jack protection box frame rod is connected and fastened with atransverse frame rod and a vertical frame rod at the bottom of the tensioning support through a cross fastener, and a bamboo plywood is installed on the jack protection box frame rod. The hydraulic jack is convenient to erect, the hydraulic jack can be effectively protected, meanwhile, the tensioning construction of different types of precast beams can be met, the material loss is reduced to a certain extent, the personnel