Environmental problems in Cirebon City are increasingly complex, characterized by declining air quality, reduced green open spaces, river pollution, and damage to mangrove ecosystems. This condition shows that solving environmental problems not only requires a technical approach but also strengthening the moral and spiritual values of the community. This study aims to analyze the forms of ecological da'wah of Muhammadiyah in Cirebon City, identify Islamic values that are its theological foundation, and formulate an ecological da'wah model based on Islamic values. The research uses a qualitative approach with a case study design. Data were collected through in-depth interviews, participatory observations, and documentation studies, then analyzed using the Miles, Huberman, and Saldaña interactive models. The results of the study show that Muhammadiyah's ecological da'wah is realized through environmental education and awareness, conservation actions such as river cleaning and mangrove rehabilitation, as well as community empowerment programs through Adiwiyata School and Amanah Waste Bank. All of these activities are based on Islamic values, namely khalifatullah fil-ardh, mizan, ishlah, amar ma'ruf nahi munkar, and the prohibition of doing damage to the earth. This research resulted in the Muhammadiyah Ecological Da'wah Model Based on Islamic Values (DEMB-NI) which integrates theological, institutional, community, policy, and ecological action dimensions as a framework for strengthening sustainable environmental conservation. This model has the potential to be a reference for religious organizations and local governments in developing environmental conservation movements based on Islamic values.