Abstract: Tamarindus indica Linn,an evergreen arbor,belongs to Caesalpiniaceaeas.Its fruit flesh can be used directly as a tropic fruit or processed into beverage and other products.There are two kinds of fruits,the sour and the sweet.An autochthonic sour variety and three sweet varieties introduced from Thailand were compared in morphology,the content of protein,total acid,total sugar,main mineral nutrition,main vitamin and sugar-acid ratio.The results showed a high level of protein content,acid content,sugar content,main mineral nutrition content inTamarindus indica Linn..Total acid content and total sugar content of sour variety was 11.6% and47.4% ,and the minimum total acid content and total sugar content of sour variety is 3.1% and 57%.The minimum content of Mg,Fe,Mn and Cu was 22.8,1.3, 0.28 mg/100 g and 78.6 mg/100 g in Tamarindus indica Linn.There was significant difference in the sizes and components of pod,acid,sugar and vitamin C contents between two types of varieties.The research provided scientific basis for processing and utilization of Tamarindus indica Linn.