To avoid price drops after airdrop token unlocking and ensure liquidity, projects can implement a phased unlocking schedule. This gradually releases the tokens into the market, reducing the immediate supply shock. Conduct thorough market research before the unlock to understand the potential demand for the token. Build a strong community and user base that is likely to support the token's price. Additionally, list the token on multiple exchanges to increase its liquidity. Promote the token's use cases and value proposition to attract investors and users, which can help maintain a stable price after the unlock.