Telescopic mini prism bar

A telescopic mini prism bar relates to the technical field of measurement engineering and comprises a prism bar body, the prism bar body comprises a main bar body arranged along the longitudinal direction, a fixing plate is horizontally arranged at the top end of the main bar body, a plurality of sections of telescopic bars are fixedly arranged above the fixing plate along the longitudinal direction, and the telescopic bars are arranged on the main bar body. The bottom end of the multi-section telescopic rod is fixedly connected with the upper surface of the fixed plate, and the top end of the multi-section telescopic rod is fixedly provided with a mini prism mounting seat; the multi-section telescopic rod stretches out and draws back in the longitudinal direction and is locked at the position with the needed stretching-out and drawing-back length. The multi-section telescopic rod is a sleeve type telescopic rod or a multi-section electric push rod. The height adjusting device is convenient to use, high in he