The market cycle of Bitcoin can usually be divided into four stages: rising, top, falling and bottom. The market cycle of Bitcoin is not fixed, and its cycle length and fluctuation range may be affected by many factors, including market sentiment, macroeconomic environment, policies and regulations, etc. In the rising stage, the price of Bitcoin shows a rapid upward trend, and investors can earn profits. However, when the price of Bitcoin reaches the top, the market enters a relatively stable stage, and investors need to carefully consider the factors of profit taking. Subsequently, the market enters the falling stage, and the price of Bitcoin begins to fall. Investors need to be vigilant and adopt appropriate risk management strategies. Finally, the market enters the bottom stage, the price of Bitcoin is relatively stable, and begins to gradually recover. Investors can consider gradually increasing their investment in Bitcoin.