Warning device for constructional engineering management

The utility model relates to the technical field of warning devices, and discloses a warning device for constructional engineering management, which comprises a platform, rotating rods are rotatably connected to the four corners of the top of the platform, second hollow columns are fixedly connected to the four corners of the bottom of the platform, and the second hollow columns are fixedly connected to the bottom of the platform. The lower middle portion of the rotating rod sequentially penetrates through the platform and the second hollow column and is fixedly connected with a threaded disc, the threaded disc is in threaded connection with the inner wall of the second hollow column, and the left side and the right side of the bottom of each threaded disc are fixedly connected with a first hollow column. According to the warning device, when the warning device is placed on the soil ground, the threaded disc is driven by the rotating rod to rotate, so that the conical head at the bottom of the movable rod is