The 6th International Conference on Water Resource and Environment (WRE 2020) will be held at Tokyo University of Agriculture, Tokyo, Japan from August 23rd to 26th, 2020. It will bring together academicians, scientists, engineers and technologists from all over the world to present their latest findings, opinions and views and discuss the latest thinking in the field of water resources and environment. The conference program includes plenary speeches, invited speeches, oral presentations and poster presentations. We cordially invite you attend this conference.