In the flood protection dike，the impact protection of the foot protection structure is very important. The durable foot protection structure with good protection effect can provide effective and reliable protection for the flood dike structure. In this paper，combined with Qianfengba dike project of Qianwei navigation power junction，a new type of cemented sand gravel material is introduced as a new anti-scour structural material. The applicability，durability and cost of different types of foot protection are compared and analyzed，the application of prefabricated tetrahedral toe protection of cemented sand gravel in dike engineering and river anti-scour structure is discussed.