The present work deals with chemical analysis of 32 varieties of soybean (Glycine max. (L.) Merril). Analysis of moisture content, ash content, protein content, oil content and fiber content, were obtained for each variety. The statistical analysis showed the following: 1) For forrage and human consumption, we can consider the varieties: Mandarin 8a, Bicolor de Calai and Aliança. 2) The varieties: Lee, Hood, Lincoln (Blanco), Improved Pelican (2), Lincoln (Morado) and Improved Pelican (1) are the best in oil content. 3) Hernón n.° 107, Hood, Mogiana, Hill and Selection n.° 135 were the ones with less fiber content. 4) In the materials of the present study, we found a positive correlation (r = 0,34*) between protein content and ash content..