As an important part of modern architecture, passenger elevator brings great convenience to people's life and work. The passenger elevator has a high degree of convenience. In high-rise housing, it allows residents to easily up and down the stairs, do not have to climb the stairs and feel tired. Especially for the mobility of the elderly, disabled or people carrying heavy objects, the elevator is indispensable. From the technical point of view, the operation of passenger elevator depends on complex and accurate control system. With sensors and computer programs, it is possible to achieve accurate floor berthing and stable speed regulation. In the architectural design, the position and quantity of the passenger elevator need to be carefully planned. Taking the office building as an example, if the number of passenger elevator is insufficient or the layout is not reasonable, it will lead to long waiting time during peak hours and affect work efficiency. There are also various types of passenger elevators. There is a non-organic guest ladder, which saves space in the building, and a tourist ladder, which allows passengers to enjoy the external scenery during the ride. For example, in some well-known tourist attractions, tourist ladder has become a feature of the facilities to attract tourists, providing visitors with a unique viewing angle. The safety of passenger elevators is always the primary consideration. Strict quality inspection standards, regular maintenance and emergency equipment, are to ensure the safety of passengers. In short, the elevator plays a vital role in modern society, constantly improving people's quality of life and work efficiency.