The Office of Documentation and Information, Sukhothai Thammathirat Open University applied the designing of customer interface. The marketing strategy of customer experience management concepts to improve and develop library services for doctoral students. So that students have a good experience By Channel Analysis, statistics, libraries and libraries of postgraduate students in academic year 2556-2557 by the customer contact experience. Includes interviews with librarians provider. Interview and doctoral students in disciplines that are most libraries, making sequence 1-3 library can contact the customer experience design. BY point of contact experience and the experience indirect contact. To build a good relationship with the doctoral student. Remove barriers in place to get information about the distance to meet the requirements and timely implementation. By heart The experience was above expectations.