As the largest conference in the field of science communication, the 15th annual conference of Public Communication of Science and Technology (PCST) was held in Dunedin, New Zealand during April 3-6, 2018. The conference gathered global researchers and practitioners from the field of science communication, even scientists to discuss topics with wide concern, some of which are new emerging topics. Hence, it represented research trend of science communication. The title of the conference, entitled “Science, Stories and Society takes us to the core of the worldwide science communication endeavor”, is composed of 3 sub-thesis. The conference collected 344 proposals from 44 countries, including 12 proposals from research institutions or universities in China. Among them, authors of 6 proposals from China participated in report and discussion in the conference. In order to keep abreast of new trend of science communication at home and abroad, the paper analyzed proposal distribution of different sub-topics, most popular sub-thesis, and the topic and content of Chinese proposals.