PURPOSE: An endoscope device is provided to save the costs for purchasing medical apparatuses. CONSTITUTION: A main body unit(30) includes an attaching or detaching unit(32). A channel unit(40) for an operating tool is detachably coupled with the attaching or detaching unit. The attaching or detaching unit is formed on the main body unit. The attaching or detaching unit is opened toward the outside of the main body unit.
