To provide a rotary tool magazine device with a rotor under a stop condition at an index position not rotating even when a high eccentric load is applied to the rotor, and a machine tool.

This rotary tool magazine device 1 comprises a fixing part 2, a rotor 5 supported rotatably relative to the fixing part 2 and having a plurality of tool holding tools 4 detachably holding a tool 3, a driving device 100 rotating the rotor 5 to index the tool to a predetermined position, and holding means fixing and holding the rotor 5 when the tool 3 is indexed to a predetermined position.