Self-compacting　concrete　(SCC)　has　been　used　widely.　However,　the　study　of　life-span　prediction　of　self-compacting　reinforced　concrete　is　not　enough　under　chloride　ion　corrosion　condition,　For　the　reinforcing　bars　corrosion　that　chlorine　ions　invade　into　SCC,　the　life-span　prediction　of　Self-Compacting　Concrete　is　the　key　issue.　In　this　paper,　the　life-span　prediction　model　of　SCC　structure　under　chloride　ion　corrosion　condition　is　established　and　used　to　analyze　the　life-span　prediction　of　SCC　samples.　Prediction　results　matched　the　test　results　very　well,　which　shows　the　rationality　of　this　prediction　formula.