中文摘要：

疍疍民人口迁移是民文化传播的主要载体，通过历史文献分析、实地调查等方法研究发现，在经济机会、疍生存条件、政治变革等因素的影响下，岭南民人口以珠江三角洲为核心，呈现辐射式和跳跃式的迁移规律，其疍疍主要迁移目的地为岭南沿海及东南亚等地，并在岭南各地形成不同规模的民人口板块。同时，民人口也呈现往城镇汇集的历史过程，其方向是从河流的疍上游往下游、从沿海到陆地、从农村到城市，其结果是民的人口分布呈现“板块状、带状、弧形状”的分布特点，疍同时文化个性也逐步消失，并朝与当地趋同的方向发展，这对民文化的传承和发展提出了严峻挑战。

英文摘要：

Populationmigrationis the maincarrier of Tangka culture transmission. Since the Ming Dynasty, Tangka population has been distributed on waters in Lingnan area. This paper studied population migration of Tangka through the historical literatureanalysis,field surveys and other methodsof research. Some laws about Tangka migration were found.Under the influence of economic opportunities, living conditions, political change and other factors, Tangka moved from the Pearl River Delta to other places, showing radiant and leaping migration features. Their main destinations were Southeast Asia and other places along coastal Lingnan, forming different scale of Tangka population segments. Meanwhile, Tangka migration presented a historical process of clustering in cities and towns, and the migration direction was from the upper reaches to lower reaches along rivers, from coastal areas to mainland, and from rural areas to urban areas. As aresult, the distribution of Tangka population presented different characteristics in shape： plate-shaped in urban areas, strip-shaped along rivers and shore areas, and arc-shaped in coastal and island areas.Large-scaleTangka peoplehave left their dwelling boats and started tolive ashore since 1949.With the rapid development and urbanization in China,living pattern of Tangka people has progressively changed from gathering together on waters to mixing with land residents. Cultural identity of Tangka has been gradually merging with the local, and their culturalpersonality hasgradually disappeared at the same time. Those have posed severe challenge to cultural heritage and development of Tangka.