To develop a policy for effective and efficient information services, it is necessary to perform studies that reflect multi-dimensional perspectives of various groups. For this, a literature review on the information service policies of other national digital libraries, focus group interviews of professionals from related fields, and a survey of library users and librarians are needed. This study is based on a survey that asks library users and librarians for their opinions regarding the NDL as a part of research projects to develop the NDL information service policy.