The invention relates to a method for acquiring a synonym of an industrial product name based on user historic data. The method comprises analyzing historic data produced by using an industrial product search engine by a user to excavate industrial product names with the same meaning, and comprises the following steps: performing word segmentation on an industrial product search entry, excavating industrial product name meaning, matching the synonyms of the industrial product names to acquire the synonym of the industrial product name. Through the adoption of the method for acquiring the synonym of the industrial product name based on the user historic data, the coverage range of the constructed synonym storehouse is wide and hard to make mistake; and the synonym of the industrial product name is excavated based on user data, and the data is large in base.