Punching positioning mechanism for civil engineering construction

The utility model discloses a punching positioning mechanism for civil engineering construction, which relates to the technical field of civil engineering and comprises a fixing seat, a supporting structure is arranged on the inner side of the fixing seat, a fixing sleeve is arranged on the outer side of the fixing seat, and a supporting frame is arranged in the fixing sleeve. The supporting structure is arranged, the supporting structure is matched with the supporting frame on the outer side of the fixing base to enable the fixing base to stand up, meanwhile, the height of the fixing base is preliminarily adjusted, the fixing rod is arranged at the upper end of the fixing base, the height of the fixing rod can be more accurately adjusted through the lifting mechanism, and the sliding sleeve on the outer side of the fixing rod can move left and right. When the device moves, the distance between the device and a target point is judged through the position of the pointer on the scale line, a measuring ruler doe