The Chemical Engineering Sub-alliance of University Alliance of the Silk Road (CES-UASR) is proposed and launched by the School of Chemical Engineering and Technology of Xi’an Jiaotong University. Till now, 40 universities from 10 countries have registered as the CES-UASR members. This online summer school of chemical engineering focuses on the frontier fields of: energy and chemical process integration and emission control, energy and chemical process intensification, green transformation by catalysis, long-term reliability of chemical systems and equipment. It covers the topics of hydrogen energy, solar energy, carbon dioxide capture and utilization, small molecule catalysis, fuel cell and etc. It includes more than ten lessons about these topics. The teachers come from Sweden, Japan, Norway, China, Malaysia, Iran, Poland, Serbia and etc. This summer school aims to share the chemical knowledge and research achievements for the carbon neutral target. It is anticipated that the summer school will broaden the international exchange between China and overseas in the post-epidemic era. It shows how the chemical engineering influences the future and our life.