This paper tries to deal with some conflicts and dilemma of relationship between China and Korea in the G-2 era. Sino-Korea relations have achieved a full-scale development with an unprecedented size and level since the normalization of relation between China and Korea in 1992. However in the process of mutual development, there have been some conflicts and dilemma which has confronted the two nations. Nowadays, it seems that two nations have to overcome many obstacles to hinder them from developing and advancing each others' relation in the future. As far as I understand, it is critical for them to revolve these problems such as Korea-US alliance, the North Korea's nuclear issue, the Korea-China FTA, and economic cooperaton between China and North Korea. These issues would become a barometer to evaluate the possibility of mutual prosperity and development in the hereafter. Therefore the Korean Government needs to maintain some strategic positions and attitudes toward China to achieve a full-fledged realization of common interest in each other. Under the circumstance of the emergence of G-2 era, we must pose several strategic positions that the Korea government have to hold consistently as below. Firstly, Based on strategic pragmatism and multi-vector diplomacy, it would be desirable to proceed a strategy of "alliance with the U.S. and cooperation with China" which requires more in-depth recognition of difference between alliance and strategic cooperation regarding their characteristics and roles playing in them. Secondly, in order to ensure stability and peace in North- Eastern Asia, Korean Government have to be capable of playing an important role as a bridge state in establishing a stable Sino-US relationship. Thirdly, from the viewpoint that the rise of China is an opportunity rather than threat to East Asia, Korean policy to China is required not only to promote a full-scale development of relation, but also to alleviate some conflicts between China and Korea. Fourthly, it is necessary to continue a trilateral full cooperation with US, China, and Korea to revolve the North Korea's nuclear issue. Fifthly, because the Korea-China FTA and economic cooperations between China and North Korea would make great contributions to the stability of Korean peninsula, we had better support these policies positively. Finally, from the historical viewpoint, it reminds me that the rise of China would have been more conducive to fostering stable and peaceful environment in the East Asia.