An adapter collection ring structure, that includes: a plurality of adapters, used to be connected to connectors of various different specifications; a ring shape lock piece, formed by a flexible wire bodies having both ends disposed a lock head and a lock insertion rod respectively; a plurality of plug sleeve piece, each having a fix end and a movable end, with the fix end connected to a wire body of the ring lock piece, and with its movable end connected to a connection portion, connected to the plurality of adapters respectively. The adapter collection ring structure can be used to gather and protect a plurality of adapters connected to the ring shape lock piece, so that the range of movement of the adapters is limited by the length of the plug sleeve piece, to protect the adapters from being opened and taken away easily.