After the 16th Beidou Navigation Satellite was successfully launched into orbit on Oct 25, 2012, PRC has completed its regional Beidou Navigation System. According to schedule, PRC will be the third country which owns global navigation system in ten years. Same as the US Global Positioning System (GPS), Beidou Navigation System will carry out dual-mode of military and civilian utilization and prioritize on military users while its global effort is reached. PRC is developing Beidou Navigation System independently and broadcasting messages clearly on getting rid of US GPS. Under the environments of U.S. aggressively implementing“Balancing"policy and escalating territorial conflicts in East and South China Sea, Beidou's wide applications in military will bring deeper strategic implications for PLA. Therefore, we should consider counter-measures by using electronic interference for blindingBeidou's eye and ear and strengthening missile defense system. The ROC must assess its fature defense needs based on threats when it keeps eyes on PLA's development. This is the only way to win the battle.