The railway is an important industry which quickly and safely transports a great deal of people and goods compared to other methods of transportation. Because there is not enough manpower in this field, professional engineers are urgently demanded. Although there are many people who apply for the Korea railway signaling professional engineer examination, they do not know how and what to prepare for it. This Paper analyzes the pattern of questions in the examination for the last fifteen years and the trend of the examination. The subjects which have been taught in railway related educational institutions for the last five years are also analyzed. This paper suggests some essential subjects that should be studied in order to show an easy way to obtain the certificate to those who prepare for the examination.