Objective To develop the Active Health Management Scale for Perimenopausal Women,to test its reliability and validity, and to provide an effective tool for assessing the active health management level among this population.Methods Based on the Capability, Opportunity, and Motivation-Behaviour （COM-B） model, the initial scale was formed through a literature review, qualitative research, and expert consultation.A convenience sampling method was used to select 468 women to conduct item analysis and reliability and validity tests on the scale.Results The Active Health Management Scale for Perimenopausal Women consists of 34 items across four dimensions.Exploratory factor analysis extracted four common factors, with a cumulative variance contribution rate of 63.040%.Confirmatory factor analysis indicated good overall model fit (χ2/df=1.359, RMSEA = 0.039, CFI = 0.959, IFI=0.956).The content validity index of the scale was 0.966.The Cronbach′s α coefficient of the scale was 0.928, and the test-retest reliability was 0.883.Conclusion The Active Health Management Scale for Perimenopausal Women demonstrates good reliability and validity, making it a suitable tool for assessing the active health management level in this demographic.