The 4th Int'l Conference on Hydraulic Engineering and Safety (ICHES 2019) will be held during May 29-31, 2019 in Kunming, China. ICHES 2019 is sponsored by Engineering Information Institute, Open Access Library, Scientific Research Publishing, and 1000thinktank. The conference will cover issues on Hydraulic Engineering and Safety. It dedicates to creating a stage for exchanging the latest research results and sharing the advanced research methods in related fields.