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The causes and protective measures of cavitation erosion were summarized. The cavitation corrosion resistance of different kinds of metal coatings prepared by thermal spraying, surfacing, electroless plating and plasma surface technology was introduced. Then, the research progress of organic coating such as epoxy resin series, polyurethane series, ultra high molecular-weight polyethylene coatings in the field of cavitation resistance was reviewed emphatically and compared with metal coatings. The anti-cavitation effect of ceramic organic composite coatings was reviewed. The advantages and disadvantages of several kinds of coatings were compared. Finally, the future research direction was prospected.