A　novel　lignin　derivatives　EH-lignosulfonate　(EHLS)　was　prepared　and　its　application　as　a　superplasticizer　(SP)　in　concrete　was　studied.　The　functional　groups　of　EHLS　were　characterized　by　FT-IR　analysis.　A　comparative　experiment　on　the　fluidity　of　cement　with　EHLS　and　traditional　Lignosulfonate　(LS,　prepared　from　the　black　liquid　of　paper　mill)　was　carried　out　Moreover,　the　water　reducing　rate　and　the　compressive　strength　of　concrete　with　EHLS　were　investigated.　The　FT-IR　spectra　show　that　EHLS　contains　many　functional　groups　like　hydroxyl,　sulfonate　and　carboxyl,　which　leads　to　the　adsorption　of　EHLS　on　cement　particles.　Due　to　the　large　adsorption　amount　of　EHLS　on　cement　surface,　the　water-reducing　property　and　the　adaptability　of　EHLS　are　superiors　to　that　of　LS.