Almost every country or region that suffered from the stock market crash has taken countermeasures. Emergency measures mainly include: activating the "circuit breaker" to suspend stock market trading, using the stock market stabilization fund to enter the market, repurchasing the company's shares, and eliminating market panic. In order to avoid the recurrence of the stock market crash, the construction and improvement of securities market regulations have been accelerated, effective market supervision and standardized operation have been strengthened, and economic recovery and development have been promoted to rebuild investor confidence.