The　demand　for　rare-earth　polishing　powder　is　growing　the　polishing　industry　owe　to　the　escalating　market　demand　for　electronic　products,　such　as　touch-screen　mobile　phones　and　liquid-crystal　display　devices.　Unfortunately,　after　service,　large　amounts　of　rare-earth　polishing　powder　waste　(REPPW)　are　generated　and　continuously　discarded.　However,　the　REPPW　is　a　promising　rare-earths　resource　due　to　it　contains　40-90　wt.%　of　rare-earth　oxides.　In　addition,　China　dominates　the　global　rare-earths　market　by　supplying　more　than　90%　of　the　global　rare-earth　element　output.　However,　with　China＇s　export　quotas　becoming　increasingly　rigorous,　most　countries　will　be　confronted　with　uncertainties　in　rare-earths　supply.　Thus,　recovery　of　rare-earths　from　secondary　resources　such　as　the　REPPW,　has　become　a　hot　spot　in　global　research,　because　it　is　considered　an　effective　pathway　to　lighten　rare-earths　market　fluctuations　and　protect　the　domestic　rare-earths　resource.　Herein,　this　review　comprehensively　explores　strategies　for　recycling　the　REPPW　to　recover　rare-earths.　The　challenges,　advantages,　and　disadvantages　of　the　proposed　technologies　and　processes,　as　well　as　the　process　optimization　for　rare-earths　recovery　from　the　REPPW　are　systematically　analyzed.　The　goal　of　this　review　is　to　inspire　future　research　on　the　REPPW　recycling　for　realizing　processes　that　enable　the　clean　and　commercial　recovery　of　rare-earths.