Abstract: The study focuses on villages in Baiyang Lake region in Hebei Province that located in Northern Plain's low-lying area. According to the locations, the study separates villages into three categories-edge villages, apart villages, and center villages. The study obtains and processes morphology data through a combined method of geographic information system and field investigation, then analyzes the morphology transition and influencing factors since 1960. It finds out that the three groups of villages all endured great spatial expansion, while center villages and edge villages had a much faster expansion speed in 1970s than any other era. This is explained by the fact that the Baiyang Lake endured a massive movement of lake filling and land reclamation in 1970s, which led to the unprecedented expansion. In contrast, apart villages have a relatively steady speed of expansion in all eras. Common patterns of the villages' spatial expansion including ‘block to belt’, ‘belt to block’ and ‘evenly expansion’. Compared with the other two groups of villages, edge villages have more diversified expansion trajectories. Their additional trajectories include ‘belt to radial’ and ‘u-shape to bicorn’. The study reveals the spatial evolution law of rural settlements that can be applied to the research on the spatial evolution of settlements.