The present invention provides a calibration and quantization method for the movement and proximity parameters of a bone in a CT image. The method comprises the following steps: firstly, collecting the CT images of samples, segmenting and tracking bones in the image samples, and extracting the three-dimensional models and the movement parameters of bones in the CT images of different samples as a data source; secondly, selecting a bone in the CT image of one sample as a reference bone, and creating a local coordinate system on the reference bone; thirdly, aligning bones in all the other samples with the above reference bone and putting bones in all the above samples in a local coordinate system consistent with the reference bone; finally, based on the local coordinate system of bones, determining the position and the attitude of each bone. On the above basis, points in the local coordinate system of bones are mapped onto a two-dimensional bone shape graph, so that all parameters for the surfaces of bones can be directly compared. Therefore, the problem in the prior art that the movement parameters and the proximity parameters of bones cannot be directly compared and analyzed can be effectively solved.