Lysimeter is a kind of instrument for determination of evapotranspiration in farmland. The research and application of the domestic and foreign lysimeter are continuously developed. The equipment has been improved from the non-weighing to the weighing type, and the observation methods from manual to informatization and automation. The research field has also expanded to agriculture, forestry, ecology, climate change and etc.. Meanwhile, the performance update can meet the requirements of multi-time, multi-objective and multi-factor observation. Based on the analysis of the application status at home and abroad, the design technology of the new type lysimeter was proposed to meet the hydrological cycle and evapotranspiration research.