The invention provides a high-reliability needle breakage detection device. The high-reliability needle breakage detection device has the characteristics that a needle breakage phenomenon can be detected without needling axial movement, automatic exit can be realized when detection is not needed, the sensitivity is higher, the limited working area of a hosiery machine is not excessively occupied, yarns are not easily enwound, the problems such as yarn breakage are avoided, the design, installation and debugging are simpler, and the stability and reliability are higher. The high-reliability needle breakage detection device comprises an installation seat fixedly connected with the hosiery machine, wherein the installation seat is slidably connected with a slider, the slider is driven by a driving device to slide, a detection element is further arranged on the slider, the detection element comprises a conducting tube and a conducting rod with one end inserted into the conducting tube and the other end suspended outside the conducting tube, the conducting rod is provided with a first conducting part which can contact with the conducting tube to realize conduction when the conducting rod swings, the conducting tube and the slider are mutually insulated, and the conducting tube and the first conducting part are respectively and electrically connected with a hosiery machine controller.