The present disclosure relates to a tool carrier unit of a tool magazine. The tool carrier unit of a tool magazine according to the present invention includes: a body frame installed across a first tool magazine and a second tool magazine; a clamping unit disposed at one side of the body frame and configured to clamp a tool accommodated in any one of the first tool magazine and the second tool magazine; an LM unit (liner motion unit) disposed at one side of the body frame and configured to guide a movement of the clamping unit; an actuator disposed at one side of the body frame and configured to move the clamping unit; and an unclamping unit disposed at the body frame and configured to unclamp the tool when the clamping unit reaches the first tool magazine or the second tool magazine.