A cryptocurrency trading platform has released real - time news of a new trading fee discount policy, attracting a large number of users to transfer their transactions. From the perspectives of the trading platform's user flow change, trading volume distribution, market share competition, and the economic relationship between the platform token and trading fees, analyze the impact of this policy on the price of the trading platform's token and the liquidity of the entire cryptocurrency trading market, and the possible countermeasures of other trading platforms.