The invention discloses a high-temperature superconducting comprehensive experiment instrument. The high-temperature superconducting comprehensive experiment instrument is characterized in that after being connected, a superconducting material and a lower plugging connector are fixed on a lower substrate of a plugging connector; an upper substrate of the plugging connector is fixed at the lower end of a probe and is provided with an upper plugging connector; and the upper plugging connector and the lower plugging connector are connected in a plugging manner. A superconducting material working power supply with wide-range voltage adjustment is connected with the superconducting material by the plugging connector. A sleeve and a leak-proof sleeve are connected and are sheathed on an upper fixed frame. The lower end of the sleeve is also provided with a magnet. The high-temperature superconducting comprehensive experiment instrument overcomes the defects of inconvenient installation and disassembly, easy damage, fewer experiment contents and more liquid-nitrogen loss and the like of the known high-temperature superconducting experiment instrument, and can be used for improving various known high-temperature superconducting experiment instruments, experiment conditions and experiment effect and adding the experiment content.