概述了国外水电建设中的技术发展情况，着重论述了物探、高坝和抗震、厂房优化布置、洞内消能、预应力混凝土衬砌隧洞、大坝监测和老坝检测修复等几项重大技术在水电工程中的应用。

The development of oversea technique for construction of hydroelectric engineering is briefly described in this paper. Some important aspects on oversea hydroelectric technique, including the physical exploration, high dams and seismic resistance, optimum design on layout of hydropower houses, energy dissipaion in spillway tunnels, prestressed concrete lined tunnels, dam monitoring and repair of old dams, etc, are also described. Finally, some lessons from the comparison between Chinas and oversea hydroelectric techniques are suggested.