The application relates to the technical field of material in-situ micro-nano experiment platforms, and provides a transmission
electron microscope in-situ low-temperature sample rod, which comprises a main body part, a
handle and a rod body, the rear end of the rod body is connected with the
handle, a cold-lead channel extending from the
handle to the front end of the rod body is arranged in the main body part, a cold-lead part is suspended and supported in the cold-lead channel through a heat-insulating support structure and extends out of the front end of the rod body at the front end, is used for being in contact with a rod head, a cold-quantity receiving part is connected with the cold-lead part at a first end and extends out of the main body part at a second end, a cold source module is configured to use closed
solid nitrogen as a cold source to output vibration-free cold quantity, and the second end of the cold-quantity receiving part is in contact with the cold source in the cold source module. In this way, the transmission
electron microscope in-situ low-temperature sample rod has the advantages of extremely low temperature, vibration-free, long-time heat preservation and low
heat leakage, so as to meet the requirements of a transmission
electron microscope in a lower temperature zone, high stability and long time.