The global economic crisis has a strong impact on world party politics. Some ruling parties lost power due to the lack of effective responses while others consolidated their positions by taking proper anti-crisis measures；the European left-wings failed to seize the opportunities in the crisis while the Latin American left-wings gained greater development space；some communist parties and extremist forces both achieved modest development and influences. The various political parties have deeply reflected the causes and effects of the crisis. They argued that neo-liberalism was the root of the crisis and the crisis would accelerate the world’s transformation from a unipolar to a multipolar structure；that the debate on development mode would be more intense than ever with the “Chinese Mode” subjected to more attention. In the post-crisis era，the ruling parties in many countries have actively adjusted their national development strategies in order to occupy the high ground for future development. China should keep an open mind，learn from foreign lessons and experiences of different development modes，and constantly develop and improve socialism with Chinese characteristics.