This article studies the effect of the tetrahedron permeable framework beach protection structure by the flume experiment results show that after the implementation of the tetrahedron permeable framework protection structure, the river flow rate is obviously reduced. The tetrahedron permeable framework beach protection structure is water permeable which can dissipate energy, reduce the near bottom velocity of the water and improve the flow pattern partially, thereby the near bottom velocity of the water may be lower than the non-flushing velocity, even the riverbed deposit can be produced. Compared with traditional beach protection engineering, it can effectively avoid the problem that the entity revetment foundation is easy to be scoured and then affect its stability. It is capable to adapt to the topographic change of river bed without foundation treatment and the need for bottom protection. The tetrahedron permeable framework, which can be directly threw on the riverbed, having the advantages of stability, simple construction and low cost, is a new technology that is worth to be popularized energetically.