The invention discloses a rotation type tool changer for a false tooth engraving and milling machine. The rotation type tool changer comprises a Z-axis feeding device, an X-axis feeding device and a rotary tool apron, wherein the Z-axis feeding device comprises a Z-axis motor, a Z-axis screw and a Z-axis support frame, the Z-axis screw is mounted on the Z-axis support frame, and is driven by the Z-axis motor, a mounting board is matched on the Z-axis screw by threads, a spindle motor and a spindle are mounted on the mounting board, one end of the spindle is connected with the spindle motor, a tool clamping base is mounted on the other end of the spindle, the X-axis feeding device comprises an X-axis motor, an X-axis support frame and an X-axis screw, the Z-axis support frame is matched on the X-axis screw by threads, the X-axis screw is mounted in the X-axis support frame, the X-axis motor drives the X-axis screw to rotate, the rotary tool apron is positioned on one side of the X-axis support frame, and the tool clamping base can move to be right above the rotary tool apron. The rotation type tool changer has the beneficial effect of being high in degree of automation, tool changing efficiency and tool changing accuracy.