Objective To translate the Online Teaching Effectiveness Scale into Chinese, to test its reliability and validity, and to provide useful tool for evaluating online teaching effectiveness. Methods The Chinese version Online Teaching Effectiveness Scale （C-OTES） was formed through translation, expert consultation, pilot survey, and cultural adaptation,etc. Then 435 students were surveyed with C-OTES to test its reliability and validity. Results Such 4 common factors as display, professionality, promotion and participation, were extracted out of the 10-item C-OTES by exploratory factor analysis, and the cumulative variance contribution rate was 89.023%.Confirmatory factor analysis showed that the factor loading of 10 items ranged from 0.446 to 0.936 （P＜0.001）, and the other model fit indexes were satisfactory.The content validity index （CVI） at the scale level was 0.967, and the CVI of each item ranged from 0.812 to 0.989.Cronbach′s α coefficient for the whole scale was 0.925.The test-retest reliability coefficient was 0.899. Conclusion C-OTES has good reliability and validity, and can be used as a tool to evaluate the teaching effect of online courses.