The problem of school libraries inclusion into the educational process, activities on implementation of the Federal state educational standards, full disclosure of its pedagogical potential is becoming more important. The project technologies can contribute in promoting reading activity. The article objective is to show the possibilities of network project technology of school libraries as a tool to improve pupils’ reading activity based on author’s experiments in 2012-2016. To achieve this goal the following tasks are solved: features of the project method applied to education and library activities are discussed; resources of network projects in the school libraries practice are analyzed; based on the author's experimental work the possibilities of intensifying readers’ activity and forming readers' competences through the network of library projects in school libraries are studied. The article presents the results of publications analysis on the project library activities, considers the role and place of the network project in library pedagogy as a tool to improve pupils’ reading activity and a resource of non-formal librarians training. The author's experimental work carried out in the framework of the network project activities in school libraries is described.