Building foundation reinforcing pile

The utility model belongs to the technical field of foundation reinforcement, and particularly relates to a building foundation reinforcement pile which comprises a pile body, a first reinforcement assembly, a first reinforcement block, a second reinforcement assembly and a pile base fixed in a foundation in a cast-in-place mode, a foundation pit is formed in the foundation, and the pile base is arranged in the foundation pit. A first reinforcing cavity and a plurality of second reinforcing cavities are formed in the foundation pit, the pile body is fixed to the top of the pile base, the first reinforcing assembly is arranged in the second reinforcing cavities, the first reinforcing block is arranged in the first reinforcing cavity, and the first reinforcing assembly and the first reinforcing block are both connected with the pile base. The foundation reinforcing device is reasonable in design and simple in structure, the foundation reinforcing effect can be guaranteed, meanwhile, it can be guaranteed that th