Abstract: Previous method for analysis of measured displacement data has mainly been focused on displacement time. Actually, monitoring data contains more useful information for engineering design and construction, including information of displacement space. For engineering design and construction, the information of displacement space is needed, in addition to displacement time. The method for synthetically analyzing displacement in time and space is suggested the purpose of synthesizing the information of displacement time and displacement space to serve for engineering design and construction. According to its representive form the method can be performed in vertical line way and camber way. Taking the shiplock slope engineering of Wuqiangxi Hydropower Station as an example, we further explained the principle and application of the method.