A stone extraction fragmentation device (1) of the present invention include: a stone extraction operation section (4) having a first main body (30) and a gripping section (41); and a fragmentation operation section (50) having a second main body (52), a moving body (69) which is capable of being connected with the first main body (30), and a rotating knob (75) which is configured to move the moving body (69) with respect to the second main body (52), wherein the fragmentation operation section (50) is capable of driving the basket section by moving the gripping section (41) in a direction away from the first main body (30) in accordance with moving the moving body (69) in a direction away from the fragmentation operation section (50) using rotation of the rotating knob (75).