In the background of the increasing of global economic integration, the financial crisis spreads rapidly in the whole world from the United States. During this crisis, the use of import-restricting measures is markedly increasing. Because the background of economy, politics and law deeply changes, meanwhile, because each government of the world draws the historic lessons, the current protectionism has new characteristics and its potential perniciousness is bigger than before though it does not have big influence on global economy and international trade. China becomes the target for all countries to most frequently use protectionism measures, and China should deeply study the characteristics and trend of protectionism under new situation and its influence on targeted countries and search for the active responding policies.