Disclosed is a mechanical field scanning display including a display and a light source. The mechanical field scanning display further includes a motor and a driven wheel which are in drive connection through a conveyor belt. A reflector is disposed in a beam emission direction of the light source. A reflective surface component with field scanning is disposed on the conveyor belt. A line beam emitted by the condensed light source is reflected on the display through the reflector and the reflective surface component with field scanning. Through the above structural improvement, the line scanning of the display is completed by the strip high-brightness LED line beam light source, and the field scanning of the display is completed by two sub-reflecting surfaces driven by a motor and fixed on the conveyor belt. Compared with the prior art, the mechanical field scanning display uses a mechanical drive manner to complete field scanning, thereby greatly simplifies the structure of the display; and uses a high-brightness LED as the light source, thereby enabling good focusing and high brightness of displayed image-texts on the display, effectively reducing the power of the whole machine, improving the service life, expanding the range of application and improving practicality.