The　haze　pollution　issue　in　China　has　been　widely　paid　attention　among　the　social　public　recently.　It　is　significant　to　analyse　the　spatial　inequality　of　haze　pollution　in　different　urban　regions　of　China　objectively　for　providing　corresponding　efficient　coordinated　prevention　and　control　countermeasures.　Based　on　the　PM2.5　data　of　China’s　187　urban　regions　with　data　availability,　this　study　adopted　Gini　coefficient　decomposition　and　polarization　measurement　to　analyse　the　spatial　inequality　of　haze　pollution　in　China’s　urban　regions　from　2013　to　2015.　Results　showed　that　the　spatial　inequality　of　haze　pollution　in　China’s　urban　regions　was　displaying　a　growth　trend.　The　changing　trends　of　the　polarization　index　LU　and　the　national　overall　Gini　coefficient　are　basically　consistent　with　each　other,　both　indicating　an　increasing　trend.　Moreover,　the　spatial　inequality　of　China’s　urban　regions　in　the　haze　pollution　level　was　mainly　displayed　as　the　intra-regional　inequality　within　eastern,　middle　and　western　regions　of　China.　The　contribution　of　intra-regional　Gini　coefficient　accounted　for　over　55%　of　the　overall　Gini　coefficient,　while　the　contribution　of　inequality　within　themselves　accounted　for　less　than　45%.　There　were　existing　five　kinds　of　urban　regions　in　total,　by　using　k-means　algorithm　clustering,　according　to　the　haze　pollution　levels　of　them.　As　a　result,　coordinated　haze　pollution　prevention　and　control　countermeasures　were　provided　in　this　study.　The　conclusions　suggest　that　finding　of　this　study　is　of　certain　theoretical　value　and　practical　significance　for　the　coordinated　treatment　of　haze　pollution　in　different　urban　regions　of　China.　©　2018　Technoscience　Publications.　All　rights　reserved.