The　Yangtze　River　Delta　is　a　relatively　developed　area　with　many　detached　houses　in　the　suburbs.　Such　detached　houses　are　usually　1-3　stories　high,　mostly　self-built　by　local　people.　Due　to　the　lack　of　passive　design　guidance　in　the　design　and　construction　process,　these　houses＇　energy　consumption　is　usually　high.　At　present,　residents　in　the　area　use　air　conditioners,　fans,　and　other　electrical　equipment　in　their　daily　lives.　This　paper　takes　detached　houses　in　the　suburbs　of　Ningbo　as　the　research　objects,　through　performance　simulation　and　big　data　mining　of　a　large　number　of　generated　samples,　and　proposes　a　passive　design　strategy　suitable　for　the　local　building　form　and　envelope　structure,　which　can　guide　local　housing　construction.