A　single　species　stage-structured　system　incorporating　partial　closure　for　the　populations　and　non-selective　harvesting　is　proposed　and　studied　in　this　paper.　Local　and　global　stability　property　of　the　boundary　equilibrium　and　the　positive　equilibrium　are　investigated,　respectively.　Our　study　shows　that　the　birth　rate　of　the　immature　species　and　the　fraction　of　the　stocks　for　harvesting　play　a　crucial　role　in　the　dynamic　behaviors　of　the　system.　If　the　birth　rate　of　the　immature　species　is　too　low,　then　the　species　will　be　driven　to　extinction;　also,　with　the　increase　in　the　fraction　of　the　stocks　for　harvesting,　the　speed　of　driving　the　species　to　extinction　becomes　increasing.　If　the　birth　rate　of　the　immature　species　is　large　enough,　then　the　system　always　admits　a　unique　globally　asymptotically　stable　positive　equilibrium;　however,　with　the　increase　in　the　harvesting　area,　the　final　density　of　the　species　is　decreasing.　If　the　birth　rate　of　the　immature　species　lies　in　an　interval,　then　there　exists　a　threshold　m*　such　that　the　species　will　be　driven　to　extinction　for　all　m　is　an　element　of(m*,　1),　and　the　system　will　admit　a　unique　globally　asymptotically　stable　positive　equilibrium　for　all　m　is　an　element　of　(0,　m*);　also,　with　the　increase　in　the　parameter　m,　the　system　takes　much　time　to　reach　its　steady-state.　For　this　case,　though　there　are　some　natural　protected　areas　where　the　harvesting　of　the　species　is　forbidden,　if　the　area　is　too　small,　the　species　will　still　be　driven　to　extinction,　that　is,　the　small　natural　protected　area　has　no　influence　on　the　protection　of　the　endangered　species.　Such　a　finding　maybe　useful　for　human　beings　to　design　the　protected　areas　for　endangered　species.　Numeric　simulations　are　carried　out　to　show　the　feasibility　of　the　main　results.