The fast development of urban metro construction, to alleviate urban traffic congestion, has played an important role in China. However, metro lines are generally located in downtown districts or residential areas of cities, disasters of the surrounding ground surface caused by metro station excavation construction are more and more obvious. So it is much important to predict and control the risk of engineering disasters effectively at design stage. Based on the monitoring data of Xiamen Subway Line 1, ground-surface settlement adjacent to station pit is analyzed through normalization method and statistical method. Then, an empirical method of settlement prediction is obtained. Its applicability is verified by measured value in typical geological conditions and some useful suggestions are given for engineering practice in Xiamen finally.