[Objective] The plant community characteristics and species diversity patterns in restored urban wetland were researched to provide scientific basis for urban wetland protection and restoration strategies of vegetation.[Methods] Plant community of restored urban wetland at Lingany District of Tianjin City was investigated using quadrat sampling method. Species diversity-patterns was analyzed through group average clustering with data of important values.[Results] (1) The community's dominant species of tree layer, shrub layer layer and herb layer were Sophora japonica and Robinia pseudoacacia, Tamarix chinensis, and Phragmites communis. In shrub layer, Tamarix chinensis had the maximum important value. (2) Vegetation was divided into 4 groups, 17 cluster types. Widespread species in the transitional area owned the biggest frequency(32.7%); Sophora japonica+ginkgo community accounted for the largest proportion; Tamarix chinensis-Phragmitesaustralis community accounted for the largest proportion in waterfront wetland patch which had the smallest frequency(17.3%). (3) The overall change trend of Shannon-Wiener diversity and Simpon diversity was consistent. The highest value appeared in Ulmus pumila-Amorpha fruticosa community. The ratio of≥0.8 Pielu evenness accounted for 53.8% of the total sample plots, and species richness of water-around green patches showed greater intensity. (4) Robinia pseudoacacia, Salix matsudana and Rhus typhina seedlings were found, which meaning community succession and natural regeneration emerged.[Conclusion] Plant species is very abundant in overall research area, water around green patches own high species diversity and the dominance of hygrophyte community is not obvious.