Abstract The competency of “Evidence-Based Reasoning” (EBR) emphasizes the use of scientific evidence in the thinking process of scientific reasoning. This study has selected standard or guiding documents in science disciplines from 27 countries or regions. NVivo 11 was employed to code and analyze these texts for exploring the description of EBR. After the word frequency analysis, the science standards of the United States and Chinese mainland, Hong Kong and Macao regions have been chose to be analyzed in details. And the characteristics of the expression related with EBA in domestic curriculum standard documents were summarized. According to the results, we emphasized the systematized process of “reason based on evidence” when we recognized and described such kind of competency. By emphasizing the necessary support of evidence, we shall focus on the process of thinking, and then provide reference for the teaching, learning and evaluation regarding EBR in science discipline.