Pinduoduo is a domestic e-commerce platform. Cracking down on Pinduoduo refers to cracking down on and rectifying some bad behaviors on the Pinduoduo platform. Bad behaviors include fake and shoddy goods, false propaganda, selling fake goods, infringing intellectual property rights, etc. The purpose of the crackdown is to maintain market order, protect consumers' rights and interests, and promote fair competition and healthy development of e-commerce environment.