From the view of hierarchy of need, the paper deducted the characteristics that needs are fulfilled and generated the value curves and straight value model of hier-archy of need. The model approved that high degree of need is based on fulfilled basic degree of need. 本文从需要的层次理论出发,论述了人的需要得到满足的特征,给出了需求层次的效用模型和效用曲线,分析了不同层次的需求满足的直观模型。