A　type　of　slow-release　polycarboxylate　superplasticizer　(PCE)　was　prepared　and　its　application　performance　and　mechanism　were　studied　systematically.　The　experimental　results　of　cement　and　concrete　showed　that　the　prepared　slow-release　PCE　can　slowly　play　a　dispersing　role　and　finally　achieve　a　good　dispersing　effect　within　120　minutes.　Its　adsorption　behavior　on　the　surfaces　of　cement　particles　was　measured　by　a　total　organic　carbon　(TOC)　analyzer,　displaying　the　validity　of　slow　adsorption.　The　hydrate　exothermic　curves　showed　that　the　slow-release　PCE　only　delayed　the　hydration　but　did　not　affect　the　hydration　heat　and　workability　of　concrete.