The invention discloses an endoscope component and medical equipment, and belongs to the technical field of medical treatment. The endoscope component comprises a work endoscope tube, an endoscope head, a handle and a light guide optical fiber. The work endoscope tube is provided with a liquid injection channel, an instrument channel and an imaging channel. The medical equipment comprises the endoscope component and a hollow needle-knife, and a liquid leading channel is formed between the inner wall of the hollow needle-knife and the outer wall of the work endoscope tube. The endoscope component comprises a small core optical imaging unit, and the size of the endoscope component is reduced; the liquid leading channel does not need to be arranged in the work endoscope tube, the inner diameter of the work endoscope tube is reduced, the inner diameter of the hollow needle-knife used in cooperation with the endoscope component is reduced, and injuries of a human body are reduced; the hollow needle-knife is used in cooperation with the endoscope component, so that blind operation of a needle-knife operation is changed to be visual operation, and the safety coefficient is improved.