The invention discloses an artificial algal reef with effects for lifting seawater. The artificial algal reef mainly comprises three parts: an algal reef base, an algal reef substratum, and a power device. Periodic characteristics of wave are used, a non-return valve, pistons and other apparatuses are used, and the artificial algal reef has the following effects: 1. seabed sediments (rich in N and P nutrients) are lifted for shallow water alga culture; 2. the product can be used as the substratum for a certain amount of algae and a habitat for fishes and shrimps, in order to improve survival rate of seedlings, and improve ecological environment of sea; 3. deposits on the surface of algal reef are effectively removed, in order to avoid influences of deposits on adhesion and growth of algae.