The 2019 Chengdu International Eco environmental protection expo (ie Expo Chengdu) was successfully concluded in Western China International Expo City on June 29. This exhibition gathered 321 famous enterprises from 11 countries to make a grand appearance. In the exhibition space of 21000 square meters, advanced solutions for municipal, industrial and rural water, solid waste, air and soil pollution control are presented. The three-day exhibition attracted 19620 professional visitors from home and abroad. From the perspective of exhibition scale, quality of exhibitors, number of visitors and exhibition effect, China Environmental Expo Chengdu Exhibition has become the largest and highest quality professional environmental protection exhibition in Chengdu and even in the western region.