Using hierarchical internal P-sets theory,this paper researches the partial order relation characteristics of hierarchical internal packet sets based on dependency relation,and relations of elements of hierarchical internal P-sets and relations between normal P-sets and hierarchical P-sets. Hierarchical P-sets are expansion of normal P-sets and new thoughts and methods for researching and analyzing problems with multi-angles and multi-levels are provided.%利用层次内P-集合理论，研究层次内P-集合基于依赖关系偏序性质，研究层次内P-集合元素间的关系以及普通P-集合与层次P-集合的关系。层次P-集合是普通P-集合的扩展，提供了多角度、多层次分析和研究问题的方法。
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