The embodiment of the utility model discloses chain protection tube, include the connecting portion with the chain joint, connecting portion surround to become to be used for accepts the accommodationspace of chain, the connecting portion outside is connected with protection part, protection part with be formed with confined space between the connecting portion, accommodated in the confined spacebattery, with the integrated circuit board that the battery is connected, last communication unit, the control unit and the data acquisition unit of being equipped with of integrated circuit board. The embodiment of the utility model provides a through making bilayer structure with chain protection tube, make to have the confined space who is used for accomodating the easy space of chain and places integrated circuit board in it, protective chain strip that not only can be fine can also utilize the collection moulding piece on the integrated circuit board to provide service for the user, makes chain protection tube more intelligent.