The biggest enlightenment from the disintegration of the Soviet Union is: first, the economic lifeline must be in our own hands; Second, "eggs" cannot be put in one basket; Third, economic construction must be both internal and external, and we cannot rely too much on a single economic model. Fourth, we should strengthen the national strength reserve, including foreign exchange, gold and other hard currencies; Fifth, do a good job in the pre-plan management of the economic crisis and so on.