Abstract: The present invention discloses an image splicing method and apparatus, and relates to the field of image processing technologies. In embodiments of the present invention, first, a spatial relationship parameter between two scenes is determined; a spatial relationship parameter between two cameras that photograph the two scenes respectively, and internal parameters of the two cameras are obtained; and then, an operation is performed on the spatial relationship parameter between the two scenes, the spatial relationship parameter between the cameras, and the internal parameters of the cameras to obtain a homography matrix between photographed images; and according to the homography matrix, the images photographed by the two cameras are mapped to the same coordinate system to splice the images into one image. The embodiments of the present invention are mainly applied to calculation of a homography matrix between two images, especially to calculation of a homography matrix in image splicing process.