These experiments were conducted to evaluate the effects of hybrids, wilting and Bacterial inoculation on fermentation quality and Nutritive value of corn silage. Three corn forage hybrids that are abundant in Iran (647, 700, and 704) were harvested at milk stage and were wilted in 24 h. then were chopped in 2.5 cm theoretical length, and treated with Ecosyl (Lactobacillus Plantarum) and ensiled in 3.5-L mini silos equipped with a lid that enabled gas release only. The corn silage hybrid 704 had 24.5 ml effluent per kg corn forage that significantly lower than hybrids 700 and 647 and had greater IVDMD (in vitro dry matter digestibility) comparing with other corn silage hybrids. Ethanol was not detectable in hybrid 704. Totally, corn hybrid 704 had better silage characteristics than other hybrids. There was a slight improvement in silage fermentation characteristics when corn silage was inoculated with Ecosyl inoculant. The inoculated corn silage had greater dry matter and lactate concentration and lower ethanol concentration compared with uninoculated corn silage. Dry matter, and water-soluble carbohydrate concentration, and IVDMD of wilted silages were greater than unwilted corn silages. pH level were lower for wilted corn silages comparing with unwilted corn silages by 100 d after ensiling. The difference in pH can be explained by the greater dry matter content at the wilted corn silage compared with unwilted silage. Results of the experiments indicate that large differences in feed value of corn silage may exist among hybrids. Wilting tended to improve corn silage fermentation and nutritive value than inoculation with lactic acid producing bacteria.