To solve the problem that the inerratic tool paths will bring the iterative errors between path and path to polished optical components, a new polishing tool path which is named random tool path is proposed. The way of random tool path polishing is carried out as follows. Firstly, the orders of polishing positions and polishing paths are created by random tool path algorithm after the polishing positions of optical components are discretized. Secondly, the dwell times can be figured out from error distributions and material removal function. However, the actual dwell times are not the calculated values because the random polishing paths will affect the dwell times when each path scans through some polishing positions. So the next step is that the actual dwell times are computed by the offset method, and numerical control codes are produced with actual dwell times. Finally, the polishing process is performed in numerical control polishing machine. The experimental results show that the way of random tool path is disordered, and the disorder can make the iterative errors between path and path distribute equally, which can reduce the error on optical mirrors and improve the roughness.