Bed elevator adopts mature control technology from BLT, applies the self-developed permanent magnet synchronous gearless traction machine, and meets the usage requirement of special environment in hospital to the greatest extent during designing. Humanized car design with simple, bright and spacious decoration, friendly and pastel colors, clean and comfortable running space, all these combine with modern medical environment perfectly and harmoniously, build a space full of love and comfort for patients, and assist medical personnel to accomplish the sacred mission efficiently and quickly.