5G technology can make better use of spectrum resources. The comparison of spectrum resources used in past wireless communication shows that spectrum resources are relatively intensive in past wireless communication networks. When exchanging information, it will slow down the transmission speed and affect the effectiveness of information transmission, and it is very difficult to establish a perfect Internet. After 5G technology builds wireless communication networks, spectrum resources can be used more scientifically and rationally to speed up information exchange. 5G technology may have higher system capacity.