In current economic law world,the popular viewpoint is that the effectiveness value is the basic value of economic law,but this viewpoint lacks the rigorous proof.

This paper is directed against these propositions uneasily evaluating the accurate value of certain trees in a particular place in practice, discussed how to calculate the basic value of trees by applying the cross section s area of tree s chest diameter, and the method how to calculate the total value of trees by adjusting the main influential factous.

This paper analyses the basic value of the right of libraries,probes into the system of structure of the right of libraries,and presents that the basic contents of the right of libraries are the right of the users of libraries,the right of librarians and the right of libraries.

The wide spread of academic freedom idea stems from not only its instrumental value of promoting the advance and development of knowledge,but also from its mirroring academic subjects appeal to justice and appropriate rights,which is the basic value of academic freedom.