In the construction process of sand compaction pile,we often encounter the difficulties such as fail of penetrating through the hard interlayer and bursting of the pipe pile. Adopting the high-sensitivity & good- reliability test data of fiber grating FBG sensor to implement tress test for the pile body and pile end,we get to know the relationship between the dynamic side friction and static side friction,static resistance and static end resistance under different soil conditions during piling of the sand compacted pile,which is an important guidance for the selection of hammer type and feasibility analysis. According to the pile stress monitoring result,we know that the eccentric action is the main cause for the bursting of pipe pile. So,it is very important to control the verticality of the pile body during construction.