The current operation mode of tower cranes has the problems such as high safety risks and low utilization of operators on sites. To solve the problems, a remote control system of tower cranes based on 5G MEC is proposed, which can freely access multiple tower cranes and multiple clients in different geographical positions and perform comprehensive management and control. It ensures that the low time delay based on 5G communications can be realized at the application level by modular design and targeted strategies for forwarding control of status data, control data, and media stream data, which provides a reference for distributed remote control of multiple devices and clients.