We propose a ROADM comb-enabled Add/Drop scheme for elastic optical networks（EON）.The scheme replaces tradition transponder-side laser array that is composed of a lot of lasers

power splitters and WSS with the optical comb and BV-WSS.The scheme can significantly reduce the system complexity and overall cost.We present proof-of-principle demonstrations of both flexible Add and Drop functionality for separated and continuous subbands by experiment.The scheme supports wide-range from single channel to superchannel Add/Drop functionality and shows its flexibility and simplicity.