In order to better understand the long-term effects of bearing pile foundation on close subway tunnel, by improving the pile load and test monitoring equipment of centrifugal field, use geotechnical centrifuge model test to analyze the deformation of adjacent existing tunnel by pile foundation in the process of bearing load with change of parameters(different loads and pile foundation pile and tunnel structure spacing), and the interaction of pile-soil-tunnel was discussed based on the test of test results, the results showed that:blocking and reinforced effect of tunnel structure change the transmission path of the additional soil load and displacement surrounding the bearing load pile, lead to stress concentration of the tunnel body. Both sides arch waist of subway tunnel are the main areas where bear the additional load caused by bearing load pile, lead to the sinking of the subway tunnel structure. The settlement is main tunnel deformation form, horizontal displacement is small, which lead to smaller transverse cross section of the tunnel. The bearing load pile exist in one side of tunnel cause moment distribution of tunnel structure deflection to pile foundation, while the direction of the tunnel structure to the foundation piles have some distortion. A relationship between relative pile-tunnel location and the pile bearing load at which tunnel displacements occurred is presented, which provides useful guidance to tunnel design engineers.