This training workshop is initiated and designed in accordance with the decision of the Seventh Intergovernmental Session of IOC Sub-Commission for the Western Pacific (WESTPAC-VII, Malaysia 2008) and Twenty-fourth Session of Intergovernmental Coordination Group for the Pacific Tsunami Warning and Mitigation System (ICG/PTWS-XXIV, China, May 2011), with objectives to provide a broad introduction to tsunami modeling for professional staff in the countries surrounding the South China Sea. Lectures will cover fundamental knowledge of tsunami, tsunami generated threat to coastlines with its assessment, and a systematic approach to existing technologies for tsunami modeling. The training workshop aims not only to offer knowledge and appraisal of technology to attendees, but also to improve the spirit of team work of countries surrounding the South China Sea in order to have a better communication and coordination result when a tsunami happens.