There are nearly 500000 homes in Taiwan where elderly individuals over the age of 65 live alone and face daily inconveniences and dangers. In this study, we introduce an “elderly smart home environment safety monitoring and protection system.” The system consists of a control board, sensing elements, and controllable facilities. When the system detects hazards such as high carbon monoxide concentrations or fire, it automatically activates alarms, ventilation fans, window openers, and gas shut-off devices, sends Line notifications, and unlocks doors to allow rescue personnel to enter. To gather data on the daily activities of the elderly, we installed smart monitoring alert control hosts along with various sensors and controllable facilities. Following evaluation, three different versions of the safety monitoring and protection equipment for elderly smart homes were proposed for reference and potential purchase. In this paper, we outline the principles for introducing smart safety protection equipment into the living spaces of the elderly, considering factors such as user health status, user-friendly design, communication facilities, house age, and wiring of smart devices. The proposed protection system enhances home safety and monitoring capabilities for the elderly and serves as a valuable reference for promotion by the government and related industries.