The application of adjustable load is restricted by communication network coverage, bandwidth, and communication delay. The fifth generation communication technology (5G) has huge advantages in the connection speed, delay, and number of connections. Its construction has been widely carried out. 5G technology has brought significant impacts to the deepening application of adjustable load. Firstly, the important value of the 5G using in adjustable load is analyzed based on the application scenarios and performance indicators. Secondly, aiming at the typical application scenario, that is demand response, the demand for 5G bandwidths and the delay for adjustable load are analyzed. The regulation potential of the typical adjustable load in the demand response service in the 5G network environment is analyzed. Finally, the system structure and interaction process of the demand response in the 5G network environment are designed.