The Gulf War showed the world how powerful the modern military forces are, and it caused the Revolution in Military Affairs (RMA) led by U.S. government. Due to the advance of technology, RMA is a chain reaction of changes, on the doctrines, training, organizing and operational methods. Both PLA and its traditional strategic thought of ¡¨People War¡¨ are not able to keep out of impacts brought by RMA, to against High Tech War in the future. Thus, PLA brings this slogan¡¨ RMA with Chinese Characteristics¡¨ in, and devotes itself into military reform, in order to reach the goal of¡¨ Winning High Tech Local War¡¨. PLA hopes to accelerate its step for constructing military information platform, and, at the same time, to reinforce army mechanization. In the end, PLA wants to be as strong as U.S. troops in the year of 2050. In the age of Chinese Reform, Chinese economy is growing incredibly fast, and this economic power turns and pours into its military budget, for constructing modern army forces and transforming military structure. It is obvious to observe, especially taking Chinese Navy¡¦s strategy which changed from¡¨ coastal defense¡¨ to¡¨ offshore defense¡¨ and the pinpoint¡¨ consolidating naval and air supremacy and executing strategic counter attack¡¨ in China¡¦s White Paper on National Defense for two examples, China is seeking to expand its naval capability and to realize its plan for modernization, in order to reach the goal of 2050. PLA Navy (PLAN) understands that there is a huge gap between Chinese Navy and U.S. Navy, however, but they believe that they can make it up through RMA. This essay discusses the influence on modernization for PLAN from 4 aspects, which are: technology and weapon, regime, operational theory, and training, and also analysis relations between PLAN¡¦s modernization and cross-strait security.