SJ5-2 is a new class F optical material developed for developing bifocal lenses. This material is soft, chemically unstable, difficult to solve surface defects during polishing, and the surface profile accuracy is unstable. By analyzing the influence factors of polishing solution on polishing performances, a unique cerium-rare earth polishing solution suitable for SJ5-2 optical lens polishing is determined after a long time of material proportioning testing. For soft material polishing, both polishing efficiency and surface quality should be considered. The particle size of polishing abrasive is larger than 0.34 μm and smaller than 4 μm. In order to maintain a good polishing efficiency, polishing solution should be prepared into a weak acid, and with the production, to be adjusted at any time. The problem of surface defects and unstable surface profile precision can be solved by adding additives suitable for materials with low hardness and poor chemical stability. Compared with the traditional polishing solution, this method can achieve higher material removal amount and improve the quality of the polished surface. This scheme can be extended to other F-class optical glass processing.