Reliability analysis is a very important factor in power system planning. Each of the components related to reliability of distributed power system related are taken separately. Four reliability indices in literature are System Average Interruption Frequency Index (SAIFI), System Average Interruption Duration Index (SAIDI), Customer Average Interruption Duration Index (CAIDI). The reliability improvement is measured by these reliability indices that include SAIFI, SAIDI and CAIDI. This paper uses fuzzy value applied for every components related required for calculation of these reliability indices.