This study focused on the Teaching Effectiveness of the Republic of China Athletic Association coach lifesaving water, as well as the way the census taken in this study to self questionnaire as a research tool, issued a total of 190 research questionnaires were returned 169 valid questionnaires, the effective response rate to 88.94%, the resulting data after statistical analysis found that the Republic of China water sports Association water rescue trainer, its effectiveness as a self-assessment of the extent of teaching; water of different "years of teaching" and "education" lifesaving instructor, teaching effectiveness there are significant differences in the level of the section.