The author considers that the global problems of resources,especially of the natural resources are serious becoming more and more.One of the important reasons is lack of the holistic concepts and the philosophical ideas of the comprehensive Resources Science.For this reason,modern Resources Science must be developed and constructed,which has dual significance of theory and practice.From this point of view,the author has studied and discussed that what is the Resources Science and what is the disciplinary system of Resources Science.The“three dimensional network structure " disciplinary system has been discussed.The three dimensions are expressed as three parts of Resources Sciencse:General Principles,Individual Resource Branches and Regional Branches,respectively.This multi disciplinary system is a comprehensive disciplinary group of Resources Science,including Natural Resources Science.The knowledge of these disciplines can provide the scientific basis for improvewent of resources management and reform of education for Resources Science.