Split-pane　electrochromic　(EC)　windows　enable　the　control　of　glare　and　the　effective　utilization　of　sunlight　by　adjusting　the　color　of　individual　window　panes.　However,　existing　EC　control　methods　are　often　limited　to　specific　cases　or　require　extensive　simulation　work,　resulting　in　a　deficiency　of　generic　control　approaches.　To　solve　this　issue,　this　paper　proposed　a　novel　approach　to　EC　window　zoning　control　based　on　glare　prediction.　This　method　evaluated　real-time　discomfort　glare　for　each　EC　window　pane　and　effectively　adjusted　the　tinting　state　of　the　split　panes　to　mitigate　glare.　A　typical　office　setting　in　Beijing　was　selected　to　simulate　the　impact　of　utilizing　this　method　on　the　light　environment　and　energy　conservation.　The　simulation　results　demonstrate　that　this　approach　could　effectively　keep　the　discomfort　glare　probability　(DGP)　below　0.4,　which　belongs　to　perceptible　glare.　Compared　to　EC　whole　window　control,　it　reduced　the　tinting　area　multiplier　hours　by　63.64%–71.43%,　managed　UDI　values　within　the　range　of　40%–90%,　and　reduced　lighting　energy　consumption　by　over　40.98%.　The　results　confirmed　the　accuracy　of　the　proposed　method　in　glare　control,　the　improvement　of　the　lighting　environment,　and　the　significant　reduction　in　lighting　energy　consumption,　enhancing　its　substantial　energy-saving　potential.　©　2023　Elsevier　Ltd