The present research is devoted to the study of the socio-economic valuation of the development of the hydro-agricultural site of the Tchakalakou water reservoir in the Commune of Toucountouna. The data used is obtained through desk research and field surveys. The yield and production cost of the activities carried out on the agricultural site of Tchakalakou and those collected from the farmers of the district made it possible to process the data collected from the heads of households and local authorities in order to analyze the results obtained.Analysis of the results of our investigations indicate that the hydro-agricultural site of Tchakalakou is favorable to the production of all crops in all seasons. Unfortunately farmers do not attach importance to activities on the site where the relaxation of agricultural and fishing activities in recent years. Over the entire area of the irrigation area, only 23.7 % of rice production and 33.8 % of market garden produce are produced in the rainy season. Two land acquisition modes dominated the study environment. Inheritance (48.6 %) and 37.1 % for donation.