With the continuous expansion of the number of retained users，China’s passenger car market is moving from an incremental era to a stock era. The importance of the replacement market has become increasingly prominent，and replacement users will become an important target of the retail market. In addition，the consumption upgrade trend of replacement users is obvious，which means that compared with new buyers，replacement users will bring greater market benefits to auto companies. Therefore，how to meet the needs of replacement users has become an important issue for auto companies. This report believes that in the era of stock competition，auto companies should commit to increase the loyalty of users，attract users of other products，shorten the replacement cycle，deploy long-term development strategies to welcome a new round of opportunities.