Cassava clothes a strong nutritional potential and is a means of struggle against the food insecurity in the region, it constitutes an important source of calories. Its culture procures some important incomes to the small producers through the world. Tubers of cassava, as well as its drifted products, flow out everywhere without difficulty. In spite its importance, so much at the level of the food security of populations, South-Kivu’s province arranges a middle score of poor food consumption, the territory of Mwenga represents among territories having recorded scores of food consumption most critical of the province (64,8%). Although cassava presents a big faculty of adaptation to different ecological conditions, its output knows several constraints, the utilization of very appreciable local varieties to illnesses and the devastating, practices inappropriate farming, the no implication of actors to push producers. We raised that 34% of cassava producers have an age group that varies between 31-40years old, a great number of women. It would be bound to the fact that men interest themselves to the mining activities to the detriment of agriculture in our middle of survey. Producers are confronted to the difficulty of access to the credit to achieve this activity, the no political actor implication and no governmental for the improvement of this culture whereas agriculture constitutes the main source of income of 42% of producers. The upsurge of illnesses as the mosaic, the Cassava brown Steak disease, the «cercosporiose», and the «bactériose» constitutes a brake for the growth and the development of the culture. The surface cultivated by the peasant has a negative correlation (r=-0,212) with cassava’s price. What would mean that more the surface is not big, more the price that it fixes is affordable, and beneficial. We also notice that the cultivated surface has a positive correlation with the workforce for the reaping, the ploughing, and the first weeding.