The utility model discloses a tripod formwork support, including the tripod, the side of tripod is fixed to the template in, the tripod bottom is provided with its fixed anchor system of watering the medium plate concrete to the elder generation, the anchor system includes the anchor assembly that two sets of structures are the same who follows tripod bottom interval arrangement, anchor assembly includes pre -buriedly to watering earlier U shaped steel muscle that bending in the medium plate concrete is the U type and with the fixed connecting piece to the tripod of built -in fitting, and the bottom of U shaped steel muscle deviates from the template and waters the extension of medium plate concrete top with watering earlier medium plate concrete upper surface slant 45 degrees to elder generation, the connecting piece passes the bottom of U shaped steel muscle and fixed to the tripod on, and it is through the improvement of the anchor system to the tripod bottom for formwork support can bear great thrust, is applicable to the higher side wall of thickness and pours well use.