Superconducting detectors are promissing for mass spectrometers, which are important in proteomics, since the superconducting detectors have 100% detection efficiency for a wide mass range from atoms to proteins. The high detection efficiency relies on a very small threshold to detect quantum energies. However, the smallness of effective detection area and the requirement for a low temperature of 0.3 K (-272.85 °C) are bottlenecks. We succeeded in realizing the implementation of cryogenic wiring between a large scale superconducting array detector, which is on a cold stage of 0.3 K, and electronics at room temperature.