The tool position is incorrect due to the jammed chips phenomenon of the high-speed motorized spindle during the process of machine tool loading,which leads to the concentricity error and seriously affects the machining accuracy. The current post-processing detection methods not only affect the processing efficiency, but also cause the waste of processing resources. In order to solve the above problems, the finite element analysis software ANSYS Workbench was used to analyze the stress and deformation of the chip-in-spindle detection collet to simulate the jammed chips detection. By simulating the load on the external sensory surface of the collet under clean and jammed chips conditions, the strain, deformation and the jammed chips position were analyzed. The research results can provide reference for the structural optimization design of the chip-in-spindle detection collet and the design of the jammed chips detection scheme.