The　purpose　of　this　article　is　to　explore　the　possibility　of　sustainable　design　in　coastal　areas.　The　objective　is　to　deal　with　the　global　issue　of　marine　pollution,　design　to　verify　the　future　possibilities　of　sustainable　design,　and　provide　excellent　opportunities　for　innovation.　Based　on　the　sustainable　design　methodology　and　product-service　system　design　concept,　the　article　explores　the　actual　needs　of　large　retail　businesses　in　coastal　areas　in　the　process　of　development　and　transformation　and　proposes　design　directions　and　optimization　for　existing　problems　from　the　three　dimensions　of　economic　benefits,　ecological　balance　and　social　equity　in　product-service　system　design　theory.　Conclusion　Through　the　construction　of　the　＇The　seashore＇case　system,　we　provide　a　practical　and　feasible　method　to　solve　the　shoreline　sustainability　and　provide　support　for　the　future　sustainable　design　of　coastal　areas　based　on　the　concept　of　product　and　service　system　design.　©　2020　IEEE.