The Department of Earth Sciences at the National Cheng Kung University was first established in the year of 1968. The post-graduate program for M.S. degree was later added in the year of 1990. The Ph.D. program was initiated in 1996. In 2003, a post-graduate vocational program at M.S. degree level was set up for those who are currently on-job in relative fields. In 2007, the Institute of Satellite Informatics and Earth Environment was established but merged to the department in 2010. In the recent ten years, the faculty number, student populations, research facilities and courses levels as well as the research achievements are all having tremendous progression; thus, nevertheless secures the national leadership position in the fields of applied earth sciences. Research fields are including hard-rock geochemistry, marine chemistry, isotope geochemistry, mineralogy, petrology, paleontology, oceanography, hydrogeology, marine physics, geophysics, geodesy, satellite image remote sensing, structural geology, applied mineral and material technologies, applied environmental and hydrological technologies, geo-hazards investigations and preventions, satellite image processing and geodesy technologies, geologic and geographic information system, and … etc.; all of the applying earth sciences related courses. Recently, based on the specialties and expertise of the faculty as well as the need of the current society, the academic activities of the institute are integrated into three major aspects: the Mineral Technologies, the Natural Resources (Groundwater and Energy), and the Earth Environments (Geochemical and Geophysical).