Telescopic portable imaging detector and portable x-ray detection instrument

The invention provides a telescopic portable imaging detector and a portable x-ray detection instrument. The portable x-ray detection instrument comprises a portable x-ray machine, a telescopic portable imaging detector and a computer, wherein the portable x-ray machine is in optical communication connection with the telescopic portable imaging detector; and the telescopic portable imaging detector is connected with the computer. The telescopic portable imaging detector comprises an imaging box body, an intensifying screen, a vidicon and a sliding mechanism, wherein the intensifying screen is arranged on the inner side of the imaging box body; the vidicon is arranged in the imaging box body; the camera lens of the vidicon faces to the intensifying screen; the sliding mechanism is arranged in the imaging box body and can extend to the exterior of the imaging box body in a sliding mode; the vidicon is fixed on the sliding mechanism; and the vidicon is driven by the sliding mechanism to linearly move with a preset distance along the direction vertical to the intensifying screen. By utilizing the portable x-ray detection instrument, two modes of wire and wireless are adopted, the portable x-ray machine does not need to be synchronous with the imaging detector, outlaid wires and cables are reduced, the volume is small, and the portable x-ray detection instrument is convenient to carry and use.