The Ecumenical China Study Liaison Group (ECSLG) is a group of mostly European China watchers who met intermittently in the 1970s and 1980s. Key members represented the Roman Catholic Church and mainline Protestant denominations, including state churches. Members gathered every one to two years to share research and consider developments in Christianity in China starting from the latter part of the Cultural Revolution through the death of Mao Zedong, the opening up of China under the Four Modernizations Policy of Deng Xiaoping, the reestablishment of the Three-Self Patriotic Movement, and the persecution of the so-called "Shouters sect" in 1983.