The invention discloses hardware polishing process. The hardware polishing process comprises the following steps: a, placing abrasive material into a vibrating grinder with a frequency converter and placing abrasive material into 50% of a machine table; b, placing polished hardware into the machine table, setting the frequency of the frequency converter to be the vibration frequency of 35-38, pouring polishing liquid around the machine table such that polishing liquid is uniform in the machine table, wherein the weight ratio of hardware and polishing liquid is 10 to 1 and grinding time ranges from 30-40 minutes; c, adding fresh water into the machine table, cleaning for 3 to 4 minutes, adding polishing liquid again after water is filtered, adding polishing liquid with the same amount as before for 20-30 minutes and adding water for complete flushing. By taking the above mode, the vibration grinding and polishing mode is adopted such that polishing time is shortened and working efficiency is high. Meanwhile, nano-diamond polishing liquid is utilized so that polishing accuracy is increased and the pollution of the environment is effectively reduced.