To provide a drastically sanitary holder which reliably holds an instrument with a simple operation, is exchanged and sterilized by detaching only a component with bacteria stuck thereon, and is, especially, suitable for a dental care instrument.
The holder is the one for holding the instrument A to be used for a medical treatment. When the instrument A is placed on the placement base 13 of a holding member 1, a connection plate body 12 is bent downward and lowered in association with the push-down operation of the placement base 13, so as to close arm members 11. The holder grips the instrument A and lifts up the instrument A. When the arm members 11 are opened by pressure, the connection plate body 12 is bent upward and protruded, so that the instrument A is taken out.