The special focal plane design and radiation calibration of Chang′e-1 satellite CCD stereo-camera are discussed. A wide-angle, telecentric and orthoscopic optical lens coupled with an area array CCD is used as a sensor in Chang′e-1 satellite CCD stereo camera to complete the three-line array self-propelling-sweeping imaging. But with the existence of shutter smear, the exposure time has some great differences between the foresight, vertical sight and back sight. It brings difficulties to the radiometric calibration. This paper presents a solution of setting up a three-slit mask in front of the CCD focal plane, which makes the three line exposure time almost the same and after the residuals in the laboratory calibration are further adjusted, good result is obtained. This paper also introduces other performances in the radiation calibration including the estimation of the shortest exposure time, the registration of the saturation radiance, the dark current noise test, the linearity of CCD pixel response and the uncertainties of relative calibration and absolute calibration.