Social and emotional skills are important for students in 21st century study, life, and future work. In 2018, the Organization for Economic Cooperation and Development (OECD) officially launched the first round of social and emotional skills tests for 10-year-old and 15-year-old students worldwide. After 3 years of research, the first round of global data collection ended and at the end of 2019 the OECD published the Social and Emotional Ability Assessment International Report. As one of the participating cities, Suzhou, China, successfully completed the first round of testing and released a series of reports. This article summarizes the research work of the OECD and China on social and emotional capabilities of students and discusses a few insights from the data.