Evaluating　the　reliability　of　a　bus　line　can　provide　useful　information　on　the　service　performance　of　the　city＇s　bus　transit　system　and　the　need　for　improvements.　This　paper　presents　a　reliability　evaluation　model　of　a　bus　line　based　on　information　entropy.　The　model　integrates　the　weighted　bus-stop　index　and　the　variation　index　of　bus　travel　time.　To　better　determine　the　weights　of　the　bus　stop,　six　indices　were　established　based　on　three　characteristics:　passenger　flow,　bus-stop　properties,　and　the　environment.　The　proposed　model　was　applied　to　typical　bus　lines　in　Fuzhou,　People＇s　Republic　of　China.　The　results　show　that　most　bus-stop　reliabilities　at　the　peak　period　were　smaller　than　those　at　the　off-peak　period.　In　addition,　for　either　peak　or　off-peak　period,　the　reliability　shows　a　slight　upward　trend　following　a　gradual　decline　after　the　first　stop,　generally　reflecting　the　influence　of　passenger　flow,　environment,　and　location　factors.