This work was conducted at a private farm, Alharsha district, Zawia Region, Libya in two summer seasons of 2020 & 2021, to study the effect of Rhizobium Bacteria, nitrogen and biogas fertilizers on growth, chemical contents and yield of snap bean. The experiment included 6 treatments, i.e. 2 seed inoculation (with and without nitrogen fixing bacteria of genus Rhizobium), and 3 rates of nitrogen (100 kg N/ha), organic biogas (80 kg/ha) and (control) without any addition. Treatments were arranged in split – plot design with three replicates, where the treated seeds with rhizobium and untreated seeds were assigned in main plots and the three treatments of O (control), nitrogen level (100 kg/ha) and biogas rate (80 /ha) were distributed in sub plots. Results indicated that Rhizobium inoculation, being the most effective treatment on plant growth characters, physical pod character, pod yield and its attributes, as well as the nutritive value of snap bean pods in both seasons. Nitrogen fertilizer caused a significant increase in vegetative growth parameters, physical pod character and pod yield and its components as well as the nutritive value of snap bean. This result is true in both growing seasons. The followed result of this treatment was the biogas treatment compared to the un-fertilizer treatment (control). The interaction effect of rhizobium inoculation with organic biogas fertilizer, followed by the treatments of rhizobium + nitrogen fertilizer and nitrogen fertilizer alone without rhizobium inoculation, respectively, caused an increases in vegetative growth parameters, physical pod character and pod yield and its attributes, as well as the chemical constituents of snap bean pod cv. Contender.