The paper aims to order and analyze the current situation of the existing smart home experiment platforms, explore the design and research methods of the integrated experiment platform for smart home, and carry out the application practice on the construction of platform. Based on the theoretical framework of the smart home, the design method and application practice of integrated experiment platform for smart home are explained from multiple perspectives, such as sensor network, data, scenario, and subject. Focusing on the three levels of "perception", "thinking" and "implementation" in the integrated experiment platform for smart home, the theoretical framework, application practice & research methods, and practical cases are proposed. The proposed theoretical framework of an integrated experiment platform for smart home has theoretical influence for research problems in the related field. These 3 levels are configured independently, and they corroborate theoretically and support each other in practice. The platform can provide experimental space, essential data, core algorithms, and other support for research and industrial problems in the field of smart home and its related fields, so that the platform can carry out relevant research under a more complete, integrated, and robust framework. The research and practice of the experiment platform combines the existing knowledge system and provides references for academia and industrial circles, including but not limited to top-level design, sensing networks, data studies, algorithm modeling, user studies, human-machine interaction, and other dimensions, which can comprehensively advance technological progress and design innovation in the field of the smart home.