Abstract: The Huanghe River Delta possesses the very big agriculture development potential, and is the emphatic agriculture comprehensive exploitation area of the nation. Owing to the cause that the forest vegetations decrease on the middle and upper reaches of the Huanghe River,the water resources was seriously wasted etc.,the runoff rate in downstream is decrcased and cutoff. In addition,the restriction of environment factor such as the tide attacking and the salinization of soil and low forest cover rate and the coast moving back etc.,the sustainable development of the agriculture is seriously influenced in this area. On the foundation of systems analysis to the existed problem of the sustainable development of the Huanghe River Delta and the major strategy position of forestry to realize the sustainable development of economy and society in the area, this paper puts forward the directions and tasks of 21 centuries forestry ecology construction in this area.