Abstract: Household vehicles are the subjects Provisions on the Liability for the Repair， Replacement and Return of Household Automotive Products aims to protect. As a new concept in the law， household vehicles are positively defined as the cars purchased and used for the purpose of living consumption. However， the concept usage and definition doesnt meet the automobile industry common standards， and it is difficult to define “household needs”. To avoid such contradictions and conflicts， it is better to choose the negative definition model and abandon the customary appellations in the provisions by which to accord with the automobile industry common standards and avoid the controversy and obstacles in law implementation.

Key words: household vehicle, automobile industry standard, automobile consumer