The concept and its connotation of ecosystem restoration of urban rivers were defined.The restoration should be a kind of reconstruction or alternation

including river restoration and the optimization of a socio-economic system.The integrative multi-object restoration

aiming at ecosystem health of urban river was proposed

and the principles for ecosystem restoration of urban rivers were given.Furthermore

ecosystem restoration mode of urban rivers described as "pollution source controlling

discharge detaining

silt cleaning

capacity increasing

greening

bank widening

landscape constructing

habitat building" was established.Finally

restoration technologies

including channel restoration technology outside and inside rivers habitat and fishway restoration technology

physical form restoration technology were summarized.