How to launch the Taiwan campaign to complete the unification of China is the urgent issue that the Central Committee of the Communist Party of China and Suyu( 粟裕),who was in charge of liberating Taiwan to consider and endeavor to solve from the second half of 1949 to October of 1950. The Central Committee of CPC planed starting battle time for three times, that is from October to November of 1949, the spring and September of 1950. Whether the Taiwan campaign can be launched smoothly, it all depends on four aspects, namely whether the land force has done good preparation, whether the navy and air force have advantages, and whether the work to incite rebellions within Taiwan is successful. Although the Central Committee of CPC and Suyu tried their best to prepare for liberating Taiwan, there still lack of requirements, especially the construction of navy and air have not been completed. Besides, as Taiwan was one of American strategic strong points of the first island chain for containing New China, America tried its best to stop liberating it. Because of these reasons, the People's Liberation Army couldn't start Taiwan battle.