In this paper the treatment and repairing technology of polluted river was summarized,which were physical,chemical and bioremediation technologies;physical techniques include artificial aeration,polluted watercourse flushing,sediment dredging;chemical techniques include chemical alga-killing,heavy-metal fixer;bioremediation techniques include microorganism str-engthen,plant strengthening,biofilm process.These techniques are briefly included and evaluated.The future developments of these technologies are prospected.