The biopsy instrument includes a needle pipe formed in a tubular shape having a convex section, the convex section having an end section, the convex section being provided at a distal end section of the needle pipe a distal end tip provided so as to be capable of advancing and retracting with respect to the needle pipe a manipulation member connected to the distal end tip and inserted into the needle pipe and a cutting blade section provided at a proximal end side of the distal end tip and having a sharp end section.
