The　reliable　and　economical　operation　on　electrical　power　distribution　system　(EPDS)　becomes　more　and　more　significant　under　the　normal　situation　and　emergency.　An　intelligent　control　for　EPDS　is　presented　in　this　paper　in　which　expert　control　and　decision　control　are　involved.　Several　inference　mechanisms　are　proposed　and　applied　in　expert　control　for　EPDS.　The　expert＇s　knowledge　is　represented　in　the　rule　form.　State　observation,　optimization　principle　and　the　queueing　method　for　decision　control　schemes　are　adopted　in　multiobjective　decision　control　so　that　a　decision　control　scheme　corresponding　to　a　distinct　state　can　be　confirmed　quickly.　Intelligent　control　is　realized　by　a　hierarchical　distributed　microcomputer　control　system.