Fabricated foundation pit supporting structure

The utility model relates to the field of building construction, and discloses an assembly type foundation pit supporting structure which comprises a supporting pile, the top end of the supporting pile is connected with a pile cap, two stiffening plates are symmetrically installed at the top end of the pile cap, the top end of each stiffening plate is an inclined slope surface, a base plate is arranged at the top ends of the two stiffening plates, and the top ends of the two stiffening plates are fixedly connected with the pile cap. A through hole is formed in the base plate in a penetrating mode, and an anchor rod is inserted into the through hole. And a fixing mechanism for fixing the base plate is arranged on the pile cap. According to the assembly type supporting structure configuration, the time for binding reinforcing steel bars, erecting formworks, pouring concrete and maintaining on site can be saved, the construction period is greatly shortened, the assembly type supporting structure can be machined