The invention provides a method and apparatus for obtaining automobile acceleration data. The method comprises: first detection data of a three-shaft accelerometer in an automobile stationary state as well as second detection data corresponding to the three-shaft accelerometer in a linear speed-up state are obtained; according to the first detection data and the second detection data, a correction matrix is obtained, wherein the correction matrix is used for correcting a coordinate system direction of the three-shaft accelerometer; and with the correction matrix, measurement data of all coordinate shafts of the three-shaft accelerometer are corrected to obtain acceleration data of the automobile. With the method and apparatus, defects of high costs and manpower wasting because of utilization of a precise measurement instrument for acceleration sensor correction in the prior art can be overcome. Moreover, the operation is simple.