Lead　removal　effect　on　enhanced　coagulation　combined　with　potassium　permanganate　preoxidation　and　powered　activated　carbon　adsorption　processes　is　studied　by　laboratory-scaled　experiments　and　prepared　lead　and　organic　micro-polluted　raw　water.　The　optimal　combination　parameters　of　potassium　permanganate　and　powder　activated　carbon　are　determined.　The　result　shows　that　turbidity,　UV254　and　Pb2+　contents　of　the　sedimentation　effluent　are　0.164　NTU,　0.0099　cm-1　and　0.1692　mg/L,　with　average　removal　rates　of　97.48%,　71.71%　and　82.69%　separately.　The　optimum　combination　is　determined　with　powder　activated　carbon　dosage　of　40　mg/L　for　120　minute　adsorption　and　KMnO4　dosage　of　2.0　mg/L　for　2　minute　preoxidation.　The　pollutant　removal　effects　are　obviously　improved　by　the　combined　process　compared　with　conventional　process.　The　average　removal　rate　of　turbidity,　UV254　and　Pb2+　contents　are　increased　0.57%,　14.86%　and　17.08%.　The　pollutant　removal　effects　are　studied　by　small-scaled　online　water　treatment　experimental　system.　The　treatment　feasibility　of　emergency　lead　pollution　in　raw　water　is　also　evaluated.　The　experimental　results　shows　that　the　removal　rate　of　turbidity,　UV254　and　Pb2+　contents　of　sedimentation　effluent　are　0.0206　NTU,　0.0045　cm-1　and　non-detected.