It is the vigorous development of the Groupon model around the world that gives rise to the crazed cloning of domestic group-buying websites, and within a short time there was the spectacle of the "Battle of a Thousand Groups". What is different from Groupon is that, in the process of runaway growth, all types of problems have been spawned among domestic group-buying websites. For example, the excessively low threshold has lead to poor qualifications, loss of credibility, improper goods, phishing group-buying, lack of supervision and other rampant chaotic phenomena. Therefore, the market will inevitably face a major shake-out.