We propose a  combined calibration and correction method for dual-camera module, which can merge the two processes of traditional calibration and correction into one procedure. The calibration and correction of the dual-camera module does not rely on external measuring devices, and only requires a picture of the target template by the two cameras simultaneously. Firstly, we calculate the radial distortion coefficient of the camera based on crossratio invariance, and transform the camera distortion imaging model into a linear model by which the two cameras are respectively calibrated. Then the pose offset parameters between the two cameras are calculated, the right camera position is adjusted, and the pose correction between the two cameras is achieved. Finally, the pose parameters between the two cameras are calibrated. Actual application results show that the proposed calibration and correction method for dual-camera module has high precision, shortens the processing time, improves the processing efficiency , and can satisfy the requirements of packaging and production technology of dualcamera modules.