THE PURPOSE OF THIS STUDY IS TO OBSERVE THE STRUCTUAL TRANSITION OF THE PUBLIC OFFICE AND A STREET SYSTEM OF THE INNER AREA FROM 1910-1937, WHICH IS TYPICAL OF OLDER CITIES IN KOREA. THE CONCLUSIONS ARE AS FOLLOWS; POSITION OF THE PUBLIC OFFICE WAS FIXED IN RELATION TO THE CENTER IN JEONJU. LATER IT WAS EXTENDED FROM THE OUTSIDE BECAUSE OF THE JAPANESE POLICY OF CITY PLANNING. THE POLICY REMOVED THE EAST PART OF THE CASTLE, AND THEN LATER MAINTAINED THE OLD STREETS, WHILE CONSTRUCTING THE NEW STREETS AFTER DEMOLITION OF THE OLD PUBLIC OFFICE. THE POLICY DISREGARDED THE STRUCTURE OF TRADITION A BUILDING AND A STREET SYSTEM IN JEONJU.