Area measuring instrument for land utilization planning design

The utility model discloses an area measuring instrument for land utilization planning design. The area measuring instrument comprises a machine body, the upper end of the machine body is provided with a display screen and control keys, the upper end of the machine body is provided with an installation groove, the outer side of the display screen is provided with two groups of sliding grooves, the upper end of the installation groove is provided with installation plates, and a protection device is installed between the two groups of installation plates. The protection device comprises a rotating column, a sliding frame is arranged at one end of the rotating column, multiple sets of protection plates are installed at one end of the sliding frame, one ends of the protection plates are connected with the rotating column, every two adjacent sets of protection plates are rotationally connected through a rotating shaft, a scraping strip is arranged on one side of the sliding frame, a rotating handle is arranged at