Objectives: Rice (Oryza sativa L.) is a very important food in D.R.Congo. At Kisangani and its surroundings, many varieties are cultivated but their physicochemical and technological characteristics are not known. This work is carried out to characterize the most cultivated varieties Methodology and Results: to determine the nutritional and technological value of the grains and to encourage the choice of variety to prepare, the chemical, mineral and technological profile of 5 most cultivated varieties was studied. The results obtained show that the varieties studied have an approximate composition in physicochemical and nutritional elements such as recognized for rice (Oryza sativa L.) but varies according to varieties (p<0.05). Proteins range from 6.2% (Nerica7) to 7.65% (Kitombe), Crude ash from 0.8% (Nerica7) to 1.62% (Lienge), Mg from 0.39% (Lienge) to 0.71% (Kitombe), elongation percentage 35.18% (Liboga) to 50.63% (Kitombe), broken rice from 3.12% (Kitombe) to 4.59% (Lienge) Conclusions and application of findings : This study of the physicochemical and technological caracteristics of five varieties of upland rice led to the discovery of information that were previously incomplete. The local variety Kitombe, caryopsis color is red, is full of good nutritional qualities, including the high content of protein, Mg and the swelling power when cooked. The latter would be among the strong points of this variety of rice, thus the consumers of Kisangani should choose this variety to allow the most deprived families to share small quantities. Although the differences found are not statistically different, the average values obtained show that the variety Liboga is richer in dry matter and iron, Lioto in lipid and Lienge in ash. The variety Nerica7 is less rich in protein but has the same calcium content as Liboga Lienge and Kitombe. The results found in this work provide a solid foundation for genetic improvement of rice by allowing parents to be selected based on their physicochemical and technological characteristics.