Cement　slurry　powder　contains　components　that　can　adsorb　heavy　metal　ions,　which　can　be　used　as　adsorbent　to　treat　wastewater　containing　heavy　metal　ions.　In　this　experiment,　ordinary　Portland　cement　was　used　to　prepare　cement　slurry　powder　with　different　hydration　ages　to　treat　wastewater　containing　Pb2+.　The　effects　of　age　and　dosage　of　cement　slurry　powder,　Pb2+concentration,　pH　value,　temperature　and　adsorption　time　on　Pb2+removal　effect　and　adsorption　behavior　were　studied　by　means　of　X-ray　diffraction,　synchronous　thermal　analyzer　and　inductively　coupled　plasma.　The　test　results　show　that　the　removal　rate　of　lead　ion　in　wastewater　by　cement　slurry　powder　is　generally　greater　than　80%.　When　0.04　g　cement　slurry　powder　with　water　cement　ratio　of　0.　50　and　Irydration　age　of　60　d　is　used　for　Pb2+solution　with　initial　concentration　of　700　mg/L　at　35°C,　pH　=　2　and　adsorption　time　of　200　min,　the　Pb2+removal　rate　is　96.　06%　and　the　adsorption　capacity　is　336.22　mg/g.　Through　the　study　of　adsorption　thermodynamics　and　adsorption　kinetics,　it　can　be　obtained　that　the　adsorption　thermodynamics　of　cement　slurry　powder　for　Pb2+conforms　to　Freundlich　adsorption　isothermal　model,　and　the　adsorption　kinetics　conforms　to　pseudo　first-order　kinetic　model.　©　2022　China　Surfactant　Detergent　&　Cosmetics.　All　rights　reserved.