Abstract: The globalization of trade leads to an increase in economic dependence among countries. All economies constitute an interactive global economic system. Many internal channels of crisis transmission directly or indirectly affect economies within the same system. It is therefore very meaningful to study the crisis relief policy (CRF). In order to further understand the effectiveness of the economies' various CRFs under the background of the financial crisis, the system engineering model is adopted to establish a system dynamics model for financial crisis relief in a single economy, and international coordination and rescue of financial crisis in the US, Japan, Europe and China under the background of the Fed currency swap agreement. The effectiveness of the long-term rescue effect of traditional monetary policy and non-traditional monetary policy is evaluated by the system dynamics model of single economy rescue, and the long-term rescue effect of currency swap agreement on the four major economies is evaluated by the system dynamics model of international coordination rescue.

Key words: financial crisis, system engineering method, coordination rescue, currency swap agreement