Building detection device

The invention discloses a building detection device. According to the technical scheme, the building detection device is characterized by comprising a hoop detachably connected to a stand column to bedetected; a bearing ring plate fixed on the hoop through a plurality of supporting rods; a supporting column which is rotationally connected to the bearing ring plate; a walking mechanism which is used for driving the supporting column to walk on an annular path on the bearing annular plate; a first flaw detection assembly which is used for carrying out flaw detection on the stand column; a second flaw detection assembly which is used for carrying out flaw detection on the stand column; and a power mechanism which is used for driving the first flaw detection assembly and the second flaw detection assembly to vertically walk to change positions; the building detection device can perform ultrasonic flaw detection on the steel stand column, can realize omnibearing multi-angle detection, is convenient to use and high