Solid wastes are wastes that are discarded from different community activity, industries, commercials and agricultural activities. Kitchen solid waste is one of the biodegradable solid wastes that discarded in higher quantity from households. This study evaluated on household kitchen solid waste generation rate, composition analysis in legetafo sub town and biogas potential of the waste. The study was conducted on randomly selected 85 households. In the study two designs was conducted this are cross section design and experimental design. The components of collected kitchen solid waste was sorted, weighted, proximate and ultimate analysis was analyzed. The biogas production potential of the kitchen solid waste were evaluated at six different co-digestion proportion of kitchen solid waste and cow dung which were labeled as D1(90:10), D2(75:25), D3(50:50), D4(25:75), D5(10:90) and D6(0:100). The experiment was conducted for 60 days at 380c. Three parameters were optimized such as total solid, volatile solid and pH for healthy system of the digester. The results found 0.0081Kg/person per day, 0.057Kg/person per week, 0.25Kg/person per month and 3.02Kg/person per year. The composition of the waste was composed of 24 different kitchen solid wastes. The most effective digester was found D3(50:50), D4(25:75) and D5(10:90) additionally the good quality of CH4 gas was found in D3(69.5%). The maximum quantity of CH4 was achieved by D3 (1160ml) and D4 (1160ml). On the result of ANOVA taste there were significantly (P ≤ 0.05) different between the groups on the quality and quantity of the biogas but not significance (P≥0.05) difference on pH. Kitchens solid waste has a potential on the production of biogas. It was produced large quantity of methane gas when co-digest with cow dung than cow dung alone. It can be conclude that kitchen solid waste is a good substrate for biogas production.