Objective To translate the Mental Health Promotion Scale （MHPS） into Chinese, and to test its reliability and validity among nursing staff. Methods According to the Brislin translation model, the English scale was translated, back translated, cultu-rally adjusted and subjected to a pilot survey to form the Chinese MHPS.From December 2022 to April 2023, 959 clinical nurses were selected to participate in a questionnaire survey to evaluate the reliability and validity of the scale. Results The Chinese version MHPS included 12 dimensions and 39 items, and the I-CVI of each item was between 0.900 and 1.000, and the S-CVI/Ave of the scale was 0.996.Twelve common factors were extracted from exploratory factor analysis, and the cumulative variance contribution rate was 74.634%.Confirmatory factor analysis showed that all indexes of the model could meet the standard, and the model fitted well.The total Cronbach′s α coefficient of the scale was 0.961, the retest reliability was 0.888, and the split-half Spearman-Brown coefficient reliability was 0.889. Conclusion The Chinese version of MHPS has good reliability and validity, and can be used as an evaluation tool for mental health promotion ability of nursing staff in China.