Liu Zongyuan,a renowned garden designer during the Middle Tang Dynasty,engaged in early theoretical contemplation and practical investigation of garden design amid the socio-cultural shifts of the era.This study meticulously examines Liu Zongyuan's garden-related works,including poems and records,by extracting insights on garden design from the Complete Works of Liu Zongyuan,supplemented by historical accounts and contemporary research.Employing a methodological approach that integrates literature review,textual analysis,and inductive reasoning,the paper presents a detailed exploration of Liu Zongyuan's garden design philosophy across three dimensions:design exploration,design analysis,and design articulation.Findings reveal that his approach was rooted in a natural aesthetic,emphasizing a study of natural elements and an expression of natural concord,embodying the principle of'harmony with nature.'Liu Zongyuan's insights into the human-nature nexus offer valuable lessons for modern urban garden planning and ecological design.