To effectively realize camera calibration on position topography measurement

based on the camera intrinsic parameters model

a multi-camera parallel calibration method is proposed. According to active vision theory

four cameras are installed at four linear independence positions on the measuring support

and a parallel device is applied to drive these cameras shooting at he same time

so as to accomplish the shooting effect of three linear independence translation. The calibration experiments of position topography measurement are designed based on this calibration method

the experiments show that relative error of fu /fv is less than 3.87%

the absolute error of u0、v0 is less than 4 pixels

the variation range of s is 3 times. This method is fit for convenient and quick calibration on position topography measurement.