1.CollegeofChemistryandChemicalEngineeringGuizhouUniversityGuiyang550003China;2.WengfuGroupCo.Ltd.Fuquan550501ChinaReverseosmosistechnologywasanewliquidseparationtechnologywithadvantagesofhighefficiencyeasyoperationandenvironmentfriendly.Inthispapertheoryanddevelopmentofreverseosmosistechnologywasintroduced.Contentfocusedontheresearchanddevelopmentofreverseosmosistechnologyinthedesalinationtreatmentofseawaterandbrackishwaterpreparationofpurewaterindustrialsewagetreatment.Inadditiontheproblemsandsolutionmethodsinthereverseosmosistechnologywerediscussed.Intheendprospectandprogresswasproposed.reverseosmosismembranesmembraneseparationwastewatertreatmentseparationtechnology