Objective: To translate the self-care of high blood pressure inventory (SC-HIV3) into Chinese and to test its reliability and validity. Methods: The English version of SC-HIV3 was translated and back-translated, developed through cultural adaptation and pre-experiments, and finally formed into the Chinese version of SC-HIV3. 496 hypertensive patients were selected as the study population to evaluate the reliability and validity of the Chinese version of SC-HIV3. Results: The Chinese version of SC-HIV3 was divided into three subscales of self-care maintenance scale, self-care monitoring scale, and self-care management scale, with a total of 24 entries. 3, 1, and 2 metric factors were extracted from each subscale, and the cumulative variance contribution rates respectively reached 62.813%, 59.405%, and 63.582%. The model assumptions were performed with validated factor analysis, and the indicators of each model fit were at an acceptable level. Using the HB-HBP as an external calibration standard, the correlation coefficients between the Chinese version of the SC-HIV3 total score and each subscale score and the HB-HBP total score were found to be -0.266 to -0.460 (P<0.01). The content validity index of the Chinese version SC-HIV3 entries ranged from 0.829 to 1.000, and that of the total scale was 0.964. The overall Cronbach’s α coefficient of the scale was 0.893, and that of the subscales ranged from 0.766 to 0.880. Folded half reliabilities ranged from 0.692 to 0.889 for the subscales and the total scale. Conclusion: The Chinese version of SC-HIV3 has good reliability and validity, and can be used as a measurement tool to evaluate the self-care ability of Chinese hypertension patients.