Rare-earthcoordinationpolymers(RECPs),asafamilymemberofcoordinationpolymers(CPs),havebeenpreparedandstudiedwidely.Thankstotheircharacteristicpropertiesandfunctions,RECPshavealreadybeenusedinvariousapplicationfieldsrangingfromcatalysistodrugdelivery.Inrecentyears,CPswithtunablemorphologiesandsizeshavedrawnincreasinginterestandattractiveattention.ThisreviewpresentstherecentresearchprogressofRECPmicro/nanomaterials,andemphasizesthepreparation,propertiesandbroadapplicationsofthesefascinatingmaterials.