Content of total, free, bound in esters and complexes phenolic compounds, particularly ferulic acid, in malting barley variety Maresi cultivated at different level of nitrogen fertilization was analysed. It was shown that level of total phenolic compounds was higher in bran than in flour of barley, and amount of them increased with the level of nitrogen fertilization. The ferulic acid is not bound in esters, and content of this acid bound in complexes increases with the level of nitrogen fertilization. Optical density (colour) of barley grain changed with increasing of nitrogen fertilization and content of ferulic acid bound in complexes.