The invention provides a sample transferring device between nonlinear interconnected vacuum pipelines. A transferring cavity is formed and located in the intersection of the vacuum through pipelines on a plurality of different straight lines, and flanges are arranged on the side faces of the transferring cavity to connect the multiple vacuum through pipelines not all located on the same straight line to the transferring cavity; a rotating disc is arranged at the bottom of the transferring cavity, a rotating shaft of the rotating disc extends outside the cavity, a rotary knob fixed to the rotating shaft is arranged outside the cavity and enables the rotating disc to rotate, and a guide rail is arranged on the rotating disc; a gear is arranged on the position, close to the through pipelines,in the transferring cavity, and the gear rotates through the rotary knob outside the cavity; a sample carrying trolley operates on guide rails inside the through pipelines, and the guide rails insidethe through pipelines and the guide rail arranged on the rotating disc are located on the same plane; and the sample carrying trolley in the through pipelines is guided by magnets on guide rails arranged outside the pipelines to move.