In the era of “Internet +”，the construction of featured collections is the key point of libraries’ development and is the effective means to enhance libraries’ competitiveness and core values. This paper makes a thorough and detailed study on the construction of characteristic resources of public libraries，specifically analyzes the significance，current situation and existing problems of the construction，and puts forward corresponding countermeasures against the existing problems，so as to explore the future path of the construction of characteristic resources of public libraries and promote the development of libraries’ characteristic collections construction.