Perpendicularity detection device for constructional engineering

The utility model relates to the technical field of constructional engineering, and discloses a constructional engineering verticality detection device which comprises a fixed plate, the upper surface of the fixed plate is provided with a supporting column, the outer side surface of the fixed plate is provided with a connecting plate, the outer side surface of the connecting plate is provided with a moving frame, and the upper surface of the moving frame is provided with a fixing pin in a penetrating manner. According to the constructional engineering verticality detection device, a supporting rod is controlled to turn over inwards along a first connecting piece, so that the supporting rod turns over inwards to drive a second connecting piece to turn over inwards, and then the second connecting piece and a supporting column are fixed, so that an operator can control parts to support the whole device more conveniently; and the situation that the device shakes in the process that an operator detects a building