Due to global warming and climate changing, the challenges of the natural environment are getting more and more serious. Taipei city government implements sponge city as a key strategy to enhance the city’s ability to adapt to extreme weather events. In order to further promote the effective sponge city strategy among public and related industries, Public Work Department of Taipei City Government is hosting the first “2018 Taipei Water Expo and Taipei International Water Environment Forum”. It supports bilateral water environment industry policy and experience. Moreover, it enhances business international visibility through related firm expos, cities roundtable meeting, water forum, and local guidance. Likewise, promote the effective result of the sponge city policy and active industry development to international friends and domestic citizen.