The invention discloses a method for cleaning a pipe fitting before electroplating, and belongs to the technical field of machining. The cleaning method comprises the steps that the pipe fitting is heated; after the pipe fitting is cooled, the pipe fitting is subjected to acid pickling; the pipe fitting obtained after acid pickling is subjected to first-time washing; the pipe fitting obtained after first-time washing is subjected to neutralizing treatment; the pipe fitting obtained after neutralizing treatment is subjected to second-time washing; and the pipe fitting is blown dry. By means ofthe method, the pipe fitting is cleaned before electroplating under the situation that the quality of the pipe fitting is not influenced.