Abstract: Differences and synergies between the mitigation and adaptation of climate change in climate policies are analyzed in this paper; the evolution of the two key factors, i.e. mitigation and adaptation, of climate policies and their close relationships with sustainable development are reviewed; and the importance of the synergies of multi-factors is pointed out. The analysis emphasizes that more attention should be paid to the implementation of climate policy, that is to say, it should be brought into national and sectoral development policies. In the end, it is pointed out that to ensure the synergies of multi-objectives in climate policies, three issues need to be well addressed: how to determine various objectives of climate policies, how to develop the corresponding capacity necessary for ensuring the synergic implement of multi-objectives and how to combine the existing management mechanism and sectoral investment together.

Key words: climate policy, key factors, policy development, synergy