At　present,　our　country　norms　on　the　permeability　of　concrete　is　mainly　determined　by　its　strength,　without　considering　the　influence　of　admixtures　on　the　permeability.　This　paper　studies　the　permeability　of　different　strength　concrete　rules　of　different　kinds　and　dosage　of　admixture.　The　results　show　that,　the　permeability　of　concrete　is　closely　related　to　the　w/b,　but　also　it　has　a　strong　correlation　with　admixture　dosage,　the　relevance　between　the　permeability　of　concrete　and　the　kinds　of　admixture　is　relatively　small.　The　results　of　this　paper　can　provide　some　reference　value　to　the　relevant　standards　of　durability　in　our　country.