Proceeding of the Joint International Symposium on Deformatuon Monitoring. 2-4 November, 2011. Hong Kong. China. Report. GPS technology has been widely used in deformation monitoring, played an important role. Directly extract deformation monitor information from single epoch, and thus realize real-time monitoring of object detection. Combining with the method of integer ambiguity searching using single epoch, puts forward an improved extraction method of deformation monitor information using single epoch on the basis of existing methods without compute the baseline vector, and improved the extraction method. Through some examples, the method was demonstrated.