Based on “Mingzhi Yang” platform’s function requirements, aiming at improving intelligent planning and design for residential buildings under background of smart eldercare system, it analyzes main functions requirement of “Mingzhi Yang” platform from eldercare service etc.health monitoring and scenario adaption, evaluates the suitability of current smart design methodologies to such needs in retirement homes, proposes specific optimization measures from an architectural design perspective, and discusses ways to combine functional needs with intelligent building design; this research can provide some reference guidance in optimizing the intelligent aging of elderly housing buildings as well as improve the system of architectural design for the smart elderly care industry.