Bridges　are　progressively　experiencing　significant　structural　wear　and　challenges　in　their　maintenance　procedures.　To　address　this　issue,　it　＇　s　crucial　to　clarify　the　order　of　maintenance　activities　during　the　bridge　maintenance　process　and　the　impact　of　maintenance　resources　on　structural　safety　performance.　This　understanding　allows　for　the　precise　establishment　of　a　model　that　captures　the　changes　in　structural　safety　performance　in　relation　to　the　bridge　maintenance　duration　that　are　resource-constrained.　This　paper　proposes　a　resourceconstrained　bridge　maintenance　optimization　method　where　neither　the　structural　safety　performance　loss　nor　the　duration　holds　a　dominant　advantage.　An　Adjusted　NSGA-II　(Adj-NSGA-II)　method　is　employed　to　determine　the　total　structural　safety　performance　loss　and　total　duration　throughout　the　bridge　＇　s　operational　cycle.　The　results　show　that　the　number　of　construction　workers　in　the　mathematical　model　proposed　will　have　different　degrees　of　influence　on　the　change　of　the　total　construction　duration　under　the　similar　total　structural　safety　performance.　The　proposed　method　not　only　enhances　the　scientific　management　capabilities　of　decision-makers　in　bridge　maintenance　planning　but　also　provides　a　framework　that　can　be　applied　to　maintain　other　structural　forms.