Tower cranes play a crucial role in the lifting process of prefabricated components in prefabricated buildings. Traditional tower cranes usually use variable amplitude trolleys to lift prefabricated components, which mainly perform basic variable amplitude and lifting movements, making it difficult to achieve linear motion and requiring manual assistance for positioning and adjustment, which can easily cause safety of personnel and property. This article proposes a tower crane with lifting and swinging functions. The core of this tower crane lies in the design and implementation of its swinging trolley structure, which has positioning and attitude adjustment functions and can achieve precise lifting of prefabricated components. The swing car achieves relative rotation between the upper and lower parts by introducing a slewing support mechanism, thereby achieving three-dimensional spatial positioning of prefabricated buildings; In terms of control algorithm, PID control algorithm is adopted to set up a stable swing control system, realizing the stable swing control of tower cranes equipped with swing trolleys. At the same time, fuzzy control rules are introduced on the basis of PID control, and anti-interference analysis is carried out through robustness tests. By comparing the angular displacement, angular response, and anti-interference curve of the swing trolley, the control effect of the fuzzy PID stable swing control system is significantly better than that of traditional PID control, and it has excellent adaptive ability, providing strong guarantee for the stable operation of the rotating trolley.