A method and device for managing an object instance label relate to network management technologies, and can implement uniform configuration for instances under different customer premises equipments (CPEs). The method for associating an object instance label includes: receiving a message for associating an object instance label, where the message includes an object instance and a corresponding label; and associating the label with the object instance according to the message, where the label is used to identify the object instance. The present invention is applicable to batch configuration for instances under different CPEs.