From the perspective of high-precision restoration of modern maritime traffic routes，this study selects the Tsingseu lighthouse between Xiamen and Zhangzhou，and makes a field investigation on the Tsingseu lighthouse on the basis of collecting and sorting out the relevant historical documents in modern customs publications，modern newspapers and other materials. Through the comparative analysis of historical literature records and field conditions，and through the information of Lighthouse order and light range，we can rediscover the position of Tsingseu lighthouse in modern Xiamen Harbour and southeast coastal routes，and confirm the coordinates of Tsingseu lighthouse and the relative position of its ancillary facilities. This investigation and research on the Tsingseu lighthouse provides a model for the following series of investigation and Research on the lighthouse，and also prepares a reference case for the high-precision restoration of modern maritime traffic routes.