Building concrete compression resistance detection device

The invention relates to a building concrete compression resistance detection device, and effectively solves the problem that a test block is non-uniform in stress when a concrete compression detection device is used for compression. According to the technical scheme, the device comprises two pressurizing units which are symmetrically arranged up and down, each pressurizing unit comprises a first hydraulic cylinder, a second hydraulic cylinder, a third hydraulic cylinder and a plunger which are sequentially and coaxially nested from outside to inside, the pressurizing unit further comprises a horizontal pressing disc, a through hole is formed in the center of the pressing disc, and the plunger extends outwards and can penetrate through the through hole. The second hydraulic cylinder and the third hydraulic cylinder extend outwards and can abut against the disc face of the pressing disc, during testing, the plunger firstly abuts against and clamps a test block, then the third hydraulic cylinder ejects and push