Supporting device for house building

The utility model relates to the technical field of building supporting, in particular to a supporting device for house building, which comprises a supporting column, the upper end of the supporting column is fixedly connected with a fixing plate, one side of the upper end of the supporting column far away from the fixing plate is slidably connected with an auxiliary plate, and the arc surface of the supporting column is fixedly connected with a connecting plate. A supporting rod is arranged on the surface of the connecting plate, an adjusting structure is arranged on the inner wall of the fixing plate and comprises a moving plate, the moving plate is slidably connected with the inner wall of the fixing plate, a plurality of racks are fixedly connected to the inner wall of the moving plate, a gear is rotatably connected to the inner wall of the fixing plate, and the gear is connected with the racks in a clamped mode. By means of the supporting device, the problems that due to the fact that the width of the cr