Exhibition-Based educational programs are a major tool for science and technology museums to deliver informal science education. To address visitors' increasingly complex and diverse needs, science and technology museums should use visitor segmentation and service orientation to design Exhibition-Based educational programs to achieve quality, efficient and sustainable development. However, there is a lack of empirical study that explores the current situation, existing issues and improvement strategies of Exhibition-Based educational programs with visitor segmentation in science and technology museums. Thus, this study applies the qualitative research method to conduct semi-structured interviews with 27 educators from 22 museums, and analyse interview results using the Nvivo 11.0 software. According to the study, exhibition support, program planning and program implementation are key elements of educational programs with visitor segmentation.Identifying core elements of the practice can be conducive to setting up an ideal model for organizing targeted programs. On this basis, it is proposed that science and technology museums could improve the quality of their educational programs in three aspects：visitor-based exhibition support, all-around customized program planning and whole-process program implementation. The results can provide a reference and basis for optimizing exhibition-based educational programs in science and technology museums.

science and technology museums  /  visitor demassification/segmentation  /  Exhibition-Based educational programs  /  museum educators