A handle unit for a surgical device that operates an end effector to give various kinds of treatments, includes: a handle main body having a fixed member that is supported by a users hand a first coupling section that is coupled with the handle main body, and that is configured to move the end effector along the turning plane defined by moving closer to or away from the fixed member a support section that is supported by the same hand of the user and a second coupling section that is configured to move the support section in a direction away from the turning plane.
