应用醋酸纤维素膜单向电泳技术分析了８０例正常妊娠１２～２４周羊水粘多糖组分。结果表明正常羊水含有透明质酸（ＨＡ），硫酸软骨素（ＣＳ）两种组分。其中２０例同时含有ＨＡ和ＣＳ组分的图谱经光密度扫描，得出ＨＡ和ＣＳ的相对含量。２例粘多糖贮积症高危孕妇的羊水分析亦显示ＨＡ、ＣＳ组分，提示为正常胎儿。本文对正常羊水的的粘多糖组分做了分析，可为粘多糖贮积症的产前诊断提供依据。 80 cases of normal pregnancy 12 to 24 weeks amniotic mucopolysaccharide components were analyzed using cellulose acetate membrane one-way electrophoresis. The results showed that normal amniotic fluid contains hyaluronic acid (HA), chondroitin sulfate (CS) two components. In 20 cases of both HA and CS components of the spectrum by optical density scanning, the relative content of HA and CS. 2 cases of mucopolysaccharidosis high-risk amniotic fluid analysis of pregnant women also showed HA, CS components, suggesting that the normal fetus. In this paper, the normal amniotic mucopolysaccharide components were analyzed for mucopolysaccharidosis prenatal diagnosis provide the basis.