A machining center including a machine main body, an upper section of which supports a head moving device and a head raising and lowering device, configured such that a tool magazine is stored inside the machine main body, and with a magazine moving device configured to move the tool magazine such that, during tool exchange, the tool magazine is advanced to protrude from a side of the machine main body, so that, from the multiple tool holders, the tool holder used for exchange is positioned inside the movement range of the main shaft by the head moving device, and wherein the entire tool magazine is able to be moved beyond the movement range of the tool magazine by the magazine moving device to a position outside of the machine main body and detached from the machine main body.