Does it matter to enter the air traffic control bureau?

There is no need for relations to enter the air traffic control bureau.

According to the regulations of the Civil Aviation Administration of China, you don't need to rely on connections to enter the air traffic control bureau. The recruitment and employment of air traffic control bureau are conducted through open recruitment examination and interview procedures, and candidates need to pass strict selection and evaluation, including professional knowledge test, interview and background investigation. Only those who pass these procedures and meet the relevant conditions can be hired. So you don't need to rely on connections to enter the air traffic control bureau.