The　chemists＇　pursuit　of　the　ideal　synthesis　and　functionalization　of　indole　derivatives　has　lasted　over　150　years　as　their　scaffolds　have　been　widely　found　in　natural　products,　pharmaceuticals,　agrochemicals　and　organic　materials.　In　this　regard,　the　recent　resurgence　of　adopting　green　and　sustainable　electrochemistry　in　organic　synthesis　suggests　that　electrosynthesis　is　a　promising　strategy.　Indeed,　many　new　intriguing　applications　of　synthesis　and　functionalization　of　indole　derivatives　by　direct　and　redox-mediated　electrochemical　means　have　been　disclosed.　In　this　review,　we　highlight　the　fundamental　aspects,　reaction　scopes,　synthetic　applications　and　reaction　mechanisms　of　the　electrochemical　synthesis　and　functionalization　of　indole　derivatives.