Abstract: The rapid increase in urban pet ownership has led to growing conflicts over public safety, environmental hygiene, and community order, which have become critical issues affecting urban social governance. As a representative emerging first-tier city, Chengdu is characterized by high pet ownership density, intense competition for human-pet spatial resources, and a combination of high population density and rapid urbanization, providing a typical sample for studying pet-keeping conflicts. Based on symbiosis theory, this study explored the influencing factors and mitigation pathways of pet-keeping conflicts through methods such as online text mining and questionnaire surveys. Drawing on the analytical framework of symbiosis theory, this study proposed the establishment of a collaborative governance mechanism involving multiple stakeholders, including government, communities, enterprises, and individuals. Specifically, the government should improve regulations and facility construction; enterprises should develop smart pet products and provide training services; communities should establish mediation mechanisms and formulate conventions; and individuals should enhance their sense of responsibility and regulate their pet-keeping behaviors. This study provides a theoretical basis and practical pathways for the governance of urban pet-keeping conflicts, holding significant value for achieving harmonious human-pet coexistence.