In the second part , the thesis analyzes the force effect of company establishing registration by surveying its significance in terms of administrative law and civil and commercial law , pointing out that in terms of administrative law , company establishing registration acts as administrative action , whose force is represented as legalizing force , affirmative force , constraining force and executing force ; while regarding civil and commercial law , its force is manifested by establishing force , publishing force and remedy 进而在第二部分，分别从行政法、民商法意义上分析公司设立登记的法律效力，指出：在行政法意义上，公司设立登记作为行政行为，其效力同样表现为公定力、确定力、拘束力和执行力；在民商法意义上，公司设立登记的效力表现为创设效力、公示效力和弥补效力三个方面。
Based on the existed theory on the content of the validity of administrative act , chapter two inquires into the de facto force , unchangeable force , enforceable force and restraint force of administrative act respectively . chapter three analyses the six types of effect form such as nullity , coming into effect and validity . chapter four presents an important research on the prosecution , hearing and judgement of administrative case as well as amending suggestions to the present administrative litigation law 第一章探讨了行政行为效力的概念、特征、类型、本原及功能等基本理论问题；第二章在评述行政行为效力内容既有学说的基础之上，分别对行政行为的公定力、不可变更力、执行力及不可争力作了研究；第三章分析了无效、生效、有效等六种具体的效力形态；第四章着重考察了行政案件起诉、审理及判决对行政行为效力的影响，并对现行行政诉讼法的相关规定提出了修改建议；第五章主要探讨了行政行为效力实践存在的问题、原因及其保障措施。
