The expression of ‘fuzzy’ alludes to the capacity of managing uncertain or obscure inputs. Rather than utilizing complex numerical mathematical statements, fuzzy logic utilizes linguistic depictions to characterize the relationship between the input data and the output activity. In engineering systems, fuzzy logic gives an advantageous and easy to understand front-end to create control projects, helping creators to focus on the functional objectives, not on the mathematics. In this paper the basic content about the way of fuzziness, fuzzy operations and fuzzy rules are performed.