To provide a simplly-structured throttle valve apparatus which can be manufactured at low cost and has high quietness performance.

A throttle valve apparatus (1) includes: a valve seat member (10) having a valve seat face (10a); and a valve body (20) that contacts with and separates from the valve seat face (10a). In a state that the valve body (20) abuts against the valve seat face (10a) between valve seat member (10) and the valve body (20), fluid passes through a plurality of fluid runners (30A) between the valve seat member (10) and the valve body (20).