Abstract: This study addresses the deficiencies in the current flood control system and layout of the Beijiang River Basin, specifically in response to the “22·6” catastrophic flood. Through a comprehensive analysis, including an assessment of the existing flood control system and layout, hydrological calculations, and evaluations of key reservoirs and water conservancy projects, the paper advocates for a flood management approach centered on “prevention, management, and control.” It proposes a multifunctional, resilient, and integrated flood control system with elements of “regulation and storage, blocking, storage, flood diversion, and smooth drainage.” Aligned with the principles of modern water network construction, the study suggests specific engineering and non-engineering measures to optimize and enhance the flood control system and layout in the Beijiang River Basin.