A component supply system comprising: a supply device including a storage section configured to store a component and a storage body mounting section where a storage body including at least the storage section is detachably mounted and configured to supply a component from the storage section of the storage body mounted on the storage body mounting section in a supply position; a first loading stand on which the storage body can be placed; and a second loading stand disposed at a different location from a location where the first loading stand is disposed and on which the storage body can be placed, wherein the storage body is transferred between either of the first loading stand and the second loading stand and the storage body mounting section.