To provide a medical equipment holding device which enables medical equipment to be freely advancing/receding in a longitudinal direction and to be freely rotatable around a longitudinal axis, and which enables the medical equipment not to be automatically moved to an unintended position, when a person's hand gripping the medical equipment is separated from the medical equipment.

The outer peripheral surface of a holding portion 48a provided in an operation section 34a of the medical equipment is brought into pressure contact with the inner peripheral surface of a cylindrical member 47a attached on the inner surface of a ring 46a constituting a mounting section 16A, so as to form a movement regulation portion 44a that holds the medical equipment so that the medical equipment cannot be automatically moved by its gravitational force, when the person's hand gripping the operation section 34a is separated from the operation section 34a, by holding force utilizing friction acting between both surfaces in a pressure contact state.