Fangchenggang possesses the ecological bay resources of “Three Islands and Three Bays” and has a promising outlook for yacht leisure and yacht marinas.At present,the research on the shoreline planning of yacht marinas mainly relies on practical experience and qualitative analysis,lacking the support of an evaluation system and quantitative analysis.Therefore,an evaluation index system for the suitability of yacht marina shorelines is constructed.Based on this,spatial analysis methods such as buffer analysis,interpolation analysis,kernel density analysis,network analysis,and remote sensing interpretation are applied to quantitatively analyze and evaluate the suitability of yacht marina shorelines in Fangchenggang City.Based on this,layout planning recommendations for yacht marinas in Fangchenggang City are proposed,and it can provide research ideas and references for the planning of yacht marinas in other cities.