Abstract: Disclosed herein is a multi-tool for a stringed instrument. The multi-tool has several tools, such as a puller, a tuning socket, a clipper, and a hexagonal tool, on a main body, so that it is unnecessary to separately carry respective tools in the case of replacing the string of the stringed instrument, thus affording easy portability and enhancing operational convenience. Further, the multi-tool is configured such that a receiving portion receiving a tuning handle therein is rotatably provided, thus enabling the tuning handle to be rapidly and conveniently rotated.