Space camera uses the staggered linear array for earth imaging, notable stagger distortion is presented between the odd and even parts of the image data in along track direction, in order to ensure the geometric accuracy of the remote images, a stagger correction method is proposed. The earth imaging geometrical model of the space camera is established by utilizing coordinate transformation, and the reason that leads to stagger distortion is discussed. The earth imaging characteristics of the staggered linear array is analyzed. The stagger value in along track direction and along the direction of the linear array is calculated, and the influences on stagger value introduced by orbital displacement, attitude fluctuations, and terrain topography are analyzed based on Monto-Carlo method. A stagger correction method based on optical flow field is proposed according to the characteristics of the stagger distortion, the optical flow field is generated by the block matching of the odd and even parts of the image, and the image is corrected by the calculated optical flow field. The method is used for stagger correction of an infrared camera, remarkable result is reached, which verifies the validity of the stagger distortion analysis method and the stagger correction method.