Supply　chain　disruptions,　including　trade　disputes,　regional　conflicts,　and　the　COVID-19　pandemic,　have　highlighted　the　importance　of　supply　chain　resilience.　This　study　focuses　on　investment　decisions　related　to　supply　chain　resilience,　including　considerations　of　supply　disruptions,　demand　disruptions,　and　demand　time　sensitivity.　The　study　uses　a　Stackelberg　game　model,　with　the　retailer　as　the　leader　and　the　supplier　as　the　follower,　to　analyze　and　compare　optimal　strategies　for　supply　chain　participants　under　different　levels　of　risk.　The　results　show　that　the　severity　of　risk　events　impacts　the　optimal　retail　price,　optimal　wholesale　price,　supply　chain　recovery　time,　and　expected　profits　for　each　participant.　The　investment　in　supply　capacity　enhancement　not　only　expands　the　ability　to　meet　demand　but　also　encourages　suppliers　to　expedite　supply　chain　recovery,　elevate　demand　fulfillment　rates,　and　enhance　the　overall　return　on　investment　in　supply　chain　resilience.　As　a　result,　the　resilience　of　the　entire　supply　chain　is　fortified.　Similarly,　it　has　been　found　that　centralized　decision-making　leads　to　lower　prices,　shorter　recovery　times　and　greater　supply　chain　resilience　than　decentralized　decision-making.　This　study　offers　theoretical　underpinning　for　corporations　to　effectively　address　risky　occurrences,　ensure　supply　security,　enhance　supply　chain　resilience,　and　imparts　support　for　governments　involved　in　humanitarian　relief　efforts.　©　2024