The invention provides a polling trolley used for a suspended type monorail traffic system box type track beam and relates to a traffic technology and a computer technology. The polling trolley provided by the invention comprises a trolley body and a visual inspection part, wherein the visual inspection part is arranged in the trolley body; the trolley body comprises a chassis, a trolley shell, a driving unit and a driving control unit, the driving unit is connected with the driving control unit, a seat is arranged in the trolley body, and a wireless communication unit is also arranged in the trolley body; the visual inspection part comprises a light source module, an inspection camera lens, a three-axis inspection camera lens mobile platform and a data processing storage unit, and the data processing unit is connected with the wireless communication unit; and a driving safety unit is also arranged on the trolley body, the driving safety unit comprises a laser scanning barrier sensor and a work driving warning flashing light which are respectively arranged in front and behind the trolley body, and the laser scanning barrier sensor is connected with the driving control unit. The polling trolley utilizes polling equipment carrying a visual system for replacing artificial polling, the problem that artificial polling difficulty is relatively great as internal space of a box body of the box type track beam is narrow, light rays are dim and an opening in the bottom is narrow is solved, and polling efficiency and reliability can also be obviously improved.