The　degree　and　causes　of　socio-spatial　segregation　at　different　geographic　scales　remain　largely　unexplored　in　Chinese　cities.　This　study　uses　multilevel　modeling　and　national　micro-individual　census　data　to　analyze　educational　and　hukou　segregation　at　the　district,　subdistrict,　and　neighborhood　scales　across　333　Chinese　cities.　We　find　that　educational　segregation　is　generally　more　pronounced　than　hukou　segregation,　and　both　are　more　severe　at　smaller　geographic　scales.　Cities　in　eastern　China　and　those　with　higher　political　status　are　the　most　segregated.　Our　results　also　support　both　spatial　assimilation　and　global　city　theories.　Socioeconomic　inequality,　cultural　differences,　and　global　connectedness　are　all　positively　associated　with　segregation　levels,　with　these　associations　being　strongest　at　the　neighborhood　scale,　where　intergroup　exclusion　is　greater.　In　terms　of　the　impact　of　the　welfare　regime,　government　divestment　of　public　services　and　housing　commodification　exacerbate　segregation.　The　provision　of　public　housing　helps　mitigate　micro-scale　educational　segregation.　However,　it　exacerbates　segregation　between　locals　and　migrants　who　do　not　qualify　for　housing　subsidies.　The　emergence　of　polycentricity　exacerbates　micro-scale　educational　segregation.　Some　socioeconomic　factors　also　contribute　to　segregation　levels.　In　sum,　the　degree　and　determinants　of　socio-spatial　segregation,　and　the　policies　needed　to　address　them,　vary　across　geographic　scales.