Experiments　on　the　features　distribution　of　sediment　phosphorus　is　carried　out　with　sequential　extraction　method　in　a　new　artificial　lake.　In　addition,　parameters　affecting　the　sediment　phosphorus,　such　as　pH,　temperature,　dissolved　oxygen　and　light,　are　examined.　The　experimental　results　show　that　inorganic　phosphorus　is　the　most　component　in　total　phosphorus,　while　active　phosphorus　is　between　12.0%　and　15.1%.　The　mass　concentration　distribution　of　the　active　phosphorus　in　descending　order　is　as　follows:　slow　flow　area,　lake　outlet,　lake　centre,　lake　entrance,　stagnation　zone.　Also,　organic　phosphorus　in　total　phosphorus　is　in　the　range　of　3.4%　to　8.5%　and　its　mass　concentration　distribution　in　descending　order　is　listed　as　follows:　lake　outlet,　lake　centre,　stagnation　zone,　slow　flow　area,　lake　entrance.　At　the　same　time,　sediment　phosphorus　affected　by　the　environmental　factors　is　firstly　released,　followed　by　adsorption;　increasing　temperature　and　pH　is　beneficial　to　the　release　of　sediment　phosphorus;　at　lower　dissolved　oxygen,　the　release　of　sediment　phosphorus　is　largely　improved;　and　the　release　of　phosphorus　in　the　absence　of　light　is　significantly　higher　than　that　in　the　presence　of　light.