Disclosed is a tumor sampling device for lung cancer, the device comprising a sampling syringe (1), wherein a piston (2) is slidably connected inside the sampling syringe (1); the top of the piston (2) is fixedly connected to a piston rod (3), and the bottom of the piston (2) is fixedly connected to a telescopic rod (6); the two sides of the bottom of the telescopic rod (6) are rotatably connected to connecting rods (8) by means of hinge members; the bottom of the piston (2) is provided with a rack (5); the top of the left side inside the sampling syringe (1) is rotatably connected to a shaft rod by means of a bearing pedestal; the right side of the shaft rod is fixedly connected to a gear, with the outer surface of the gear meshing with the outer surface of the rack (5); the right side of the gear is fixedly connected to a bevel gear A (4), with the outer surface of the bevel gear A (4) meshing with a bevel gear B (7); the bottom of the bevel gear B (7) is fixedly connected to a rotary hollow column (17); and a sampling cutter is connected to the rotary hollow column (17) by means of a telescopic component A. In the tumor sampling device for lung cancer, the sampling cutter can extend and retract, and rotate and cut to take samples, thereby improving sampling efficiency. In addition, an incision of a patient can be treated to reduce the pain of the patient.
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