5G communication technology in the field of commercial aircraft has carried out some application exploration. By analyzing the existing state of commercial aircraft wireless data communication, combined with the advantages of 5G communication technology, the feasibility of 5G communication technology in the field of commercial aircraft design and operation is studied. The technical characteristics of 5G-ATG and 5G AeroMACS2.0 in “CAAC New Generation Aviation Broadband Communication Technology Roadmap” are analyzed, and the necessity of its application in the field of commercial aircraft operation is demonstrated; and the main problems that should be paid attention to in the design of airborne system and ground equipment for 5G technology application are analyzed in detail. It provides a certain engineering reference value for the application of 5G technology in the field of commercial aircraft operation and design.