Evapotranspiration （ET） is an important part of the water cycle; therefore, the studies on ET are of great importance to the improvement of irrigation efficiency, regional wise water management, and the sustainability of ecosystem. The calculation method of daily ET using Landsat TM and Surface Energy Balance Algorithm for Land （SEBAL） model is described in detail. Furthermore, the quantitative characteristics, spatial patterns of ET are analyzed. And then, the spatial relationships between ET and land utilization types are studied. The result shows that ET ranges from 0.05 mm to 9.11 mm with the mean value of 5.31 mm. Spatial differences of daily ET in the Yellow River Delta （YRD） are significant for different land utilization types. High ET are mainly distributed in the National Nature Reserve located in the eastern part of Dongying City, sahern and sea water culture zones in the Hekou District, the surrounding reservoirs of the central urban area of Dongying City, and high-quality farmland in Guangrao Country. The daily ET takes on a single-peak curve in water body, grassland and forest, construction area, and unused land, but a double-peak curve in farmland. Land utilization types decide the level of ET. The mean values of daily ET in the descending order are water body, beach, reed land, grassland and forest, farmland, construction area, and unused land.
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