Pay-off measuring device for engineering surveying

The invention discloses a pay-off measuring device for engineering surveying, which comprises a measuring box, a measuring tape arranged in the measuring box and used for measuring, a measuring tape shaft arranged in the measuring box and used for winding the measuring tape, an ink box, an ink line arranged in the ink box and used for paying off, and a pay-off shaft arranged in the ink box and used for winding the ink line, the measuring box is fixedly connected with the ink box, the side wall, perpendicular to the ink box, of the measuring box is provided with a measuring tape opening for the measuring tape strip to stretch out of the measuring box, and the side wall, perpendicular to the measuring box, of the ink box is provided with a pay-off opening for ink lines to stretch out of the ink box. The side wall of the measuring box with the measuring tape opening is flush with the side wall of the ink box with the paying-off opening, the measuring tape opening and the paying-off opening are located on the sam