Abstract This study targeted the National Science & Technology Museum (NSTM). It surveyed visitors' opinions as to if the facilities or services provided at the NSTM needed improvement. The results served as a reference for the management and policy making of the NSIM. The questionnaire method was used in this research. A sample survey was adopted to examine opinions from the audience. Once data were obtained, SPSS software processed the frequency analysis, reliability analysis, correlation analysis, factor analysis, checkpoint examination and variance analysis. The research found that: 1. In the audience's visiting experiences, the rate of' repeat visits was 68.3% since the inauguration of the NSTM nearly four years ago. Most visitors who had multi-reasons for visiting were mainly 30 to 39 years of age. Most visitors stayed between two and four hours. 2. Regarding opinions on NSTM improvement, visitors thought that aspects of the exhibition and education needed more improvement, while the service aspect hardly needed improvement. As for exhibitions, visitors thought that "increasing hands-on exhibits" and "keeping exhibits well functioning and workable" needed the most improvement. In the educational aspect, visitors considered that the "proding hands-on activities" section needed the most improvement. 3. The average score of visitors' opinions on the overall performance of NSTM was lower than that of individual items. Also, adult audiences and those who, visited more times tended to think that the NSTM needed more improvement. 4. The research obtained visitors' opinions through quantitative analysis. In the future, qualitative analysis will also be conducted to probe in-depth audience's opinions and attitudes.