Abstract: Tidal wetlands are important environmental resources and land reserves, providing ecosystem functions including disaster prevention and mitigation, water purification, carbon storage and beach sequestration.Stressed by climatic and human activity disturbances, the tidal flats in the Yangtze River Estuary are threatened by coastal erosion and biological invasions.To this end, multiple artificial vegetation restorations have been carried out on the tidal flats within the Yangtze River Estuary.Hengsha and Nanhui east tidal flat have achieved remarkable effectiveness, while the restoration did not succeed on the tidal flat outside Nanhuizui and Nanzhugang of Hangzhou Bay.This study summarizes the main factors affecting the survival and dispersal of the restored vegetations, reeds and Scirpus mariqueter, including the key thresholds of bed elevation and salinity, and analyzes the cases of vegetation restoration.The results show that it is better to carry out the artificial vegetation restorations on silting mudflat and take hydrodynamic conditions and bottom sediment of the tidal flat into account.Following this guiding, we have succeeded in vegetation restoration on tidal flats in recent years.