The invention belongs to the technical field of optical machining, and particularly relates to a planning method for a CCOS polishing process full-band convergence path. The method includes the following steps that a machining speed distribution matrix is calculated according to a removal function and a surface-shape error obtained by means of detection at first; then a primary iteration path in a path algorithm is determined according to the speed distribution matrix, the primary path is extended continuously through the path algorithm, and a machining polishing path is obtained through repeated iteration; and finally a control program is generated according to the obtained polishing path and a dwell time matrix, and a workpiece to be machined is subjected to CCOS polishing. The planning method has the advantages that rate stability of a machine tool can be kept to the maximum degree when the machine tool moves along the polishing path, and thus convergence can be better achieved in low-intermediate frequency machining; and in addition, path choices in each time of machining are different, surface-shape intermediate frequency convergence is facilitated, and the machining quality can be improved through the combination.