The flood control projects of the lower reaches of the Yellow River are important to the safety of the zone, but they also have some negative impacts on the environment. The flood control system is extensive and covers different sites, primarily characterized by soil and stone. Single projects have limited environmental impact, but as the impact of the system as a whole cannot be ignored. The system of projects disturbs natural processes within and out of the river. The flood control reservoirs reduce the flow to the estuary, which affects the estuary ecosystem. Construction of projects induces soil and water loss. This paper proposes eco-environmental friendly measures for flood-control projects based on the principles of sustainable development.