diff --git a/Foundation/org.egovframe.rte.fdl.string/src/main/java/org/egovframe/rte/fdl/string/EgovDateUtil.java b/Foundation/org.egovframe.rte.fdl.string/src/main/java/org/egovframe/rte/fdl/string/EgovDateUtil.java
index cd74bf9..b604ea2 100644
--- a/Foundation/org.egovframe.rte.fdl.string/src/main/java/org/egovframe/rte/fdl/string/EgovDateUtil.java
+++ b/Foundation/org.egovframe.rte.fdl.string/src/main/java/org/egovframe/rte/fdl/string/EgovDateUtil.java
@@ -66,13 +66,7 @@ protected EgovDateUtil() {
 	public static String getCalcDateAsString(String sYearPara, String sMonthPara, String sDayPara, int iTerm, String sGuBun) {
 		Calendar cd = new GregorianCalendar(Integer.parseInt(sYearPara), Integer.parseInt(sMonthPara) - 1, Integer.parseInt(sDayPara));
 
-		if (EgovStringUtil.equals(sGuBun, "day")) {
-			cd.add(Calendar.DATE, iTerm);
-		} else if (EgovStringUtil.equals(sGuBun, "month")) {
-			cd.add(Calendar.MONTH, iTerm);
-		} else if (EgovStringUtil.equals(sGuBun, "year")) {
-			cd.add(Calendar.YEAR, iTerm);
-		}
+		addCalender(iTerm, sGuBun, cd);
 
 		return getFormalYear(cd) + getFormalMonth(cd) + getFormalDay(cd);
     }
@@ -100,13 +94,7 @@ public static String getCalcYearAsString(String sYearPara, String sMonthPara, St
 
 		Calendar cd = new GregorianCalendar(Integer.parseInt(sYearPara), Integer.parseInt(sMonthPara) - 1, Integer.parseInt(sDayPara));
 
-		if (EgovStringUtil.equals(sGuBun, "day")) {
-			cd.add(Calendar.DATE, iTerm);
-		} else if (EgovStringUtil.equals(sGuBun, "month")) {
-			cd.add(Calendar.MONTH, iTerm);
-		} else if (EgovStringUtil.equals(sGuBun, "year")) {
-			cd.add(Calendar.YEAR, iTerm);
-		}
+		addCalender(iTerm, sGuBun, cd);
 
 		return getFormalYear(cd);
 	}
@@ -132,13 +120,7 @@ public static String getCalcYearAsString(String sYearPara, String sMonthPara, St
 	public static String getCalcMonthAsString(String sYearPara, String sMonthPara, String sDayPara, int iTerm, String sGuBun) {
 		Calendar cd = new GregorianCalendar(Integer.parseInt(sYearPara), Integer.parseInt(sMonthPara) - 1, Integer.parseInt(sDayPara));
 
-		if (EgovStringUtil.equals(sGuBun, "day")) {
-			cd.add(Calendar.DATE, iTerm);
-		} else if (EgovStringUtil.equals(sGuBun, "month")) {
-			cd.add(Calendar.MONTH, iTerm);
-		} else if (EgovStringUtil.equals(sGuBun, "year")) {
-			cd.add(Calendar.YEAR, iTerm);
-		}
+		addCalender(iTerm, sGuBun, cd);
 
 		return getFormalMonth(cd);
 	}
@@ -164,13 +146,7 @@ public static String getCalcMonthAsString(String sYearPara, String sMonthPara, S
 	public static String getCalcDayAsString(String sYearPara, String sMonthPara, String sDayPara, int iTerm, String sGuBun) {
 		Calendar cd = new GregorianCalendar(Integer.parseInt(sYearPara), Integer.parseInt(sMonthPara) - 1, Integer.parseInt(sDayPara));
 
-		if (EgovStringUtil.equals(sGuBun, "day")) {
-			cd.add(Calendar.DATE, iTerm);
-		} else if (EgovStringUtil.equals(sGuBun, "month")) {
-			cd.add(Calendar.MONTH, iTerm);
-		} else if (EgovStringUtil.equals(sGuBun, "year")) {
-			cd.add(Calendar.YEAR, iTerm);
-		}
+		addCalender(iTerm, sGuBun, cd);
 
 		return getFormalDay(cd);
 	}
@@ -196,13 +172,7 @@ public static String getCalcDayAsString(String sYearPara, String sMonthPara, Str
 	public static int getCalcYearAsInt(String sYearPara, String sMonthPara, String sDayPara, int iTerm, String sGuBun) {
 		Calendar cd = new GregorianCalendar(Integer.parseInt(sYearPara), Integer.parseInt(sMonthPara) - 1, Integer.parseInt(sDayPara));
 
-		if (EgovStringUtil.equals(sGuBun, "day")) {
-			cd.add(Calendar.DATE, iTerm);
-		} else if (EgovStringUtil.equals(sGuBun, "month")) {
-			cd.add(Calendar.MONTH, iTerm);
-		} else if (EgovStringUtil.equals(sGuBun, "year")) {
-			cd.add(Calendar.YEAR, iTerm);
-		}
+		addCalender(iTerm, sGuBun, cd);
 
 		return cd.get(Calendar.YEAR);
 	}
@@ -228,13 +198,7 @@ public static int getCalcYearAsInt(String sYearPara, String sMonthPara, String s
 	public static int getCalcMonthAsInt(String sYearPara, String sMonthPara, String sDayPara, int iTerm, String sGuBun) {
 		Calendar cd = new GregorianCalendar(Integer.parseInt(sYearPara), Integer.parseInt(sMonthPara) - 1, Integer.parseInt(sDayPara));
 
-		if (EgovStringUtil.equals(sGuBun, "day")) {
-			cd.add(Calendar.DATE, iTerm);
-		} else if (EgovStringUtil.equals(sGuBun, "month")) {
-			cd.add(Calendar.MONTH, iTerm);
-		} else if (EgovStringUtil.equals(sGuBun, "year")) {
-			cd.add(Calendar.YEAR, iTerm);
-		}
+		addCalender(iTerm, sGuBun, cd);
 
 		return cd.get(Calendar.MONTH) + 1;
 	}
@@ -260,6 +224,18 @@ public static int getCalcMonthAsInt(String sYearPara, String sMonthPara, String
 	public static int getCalcDayAsInt(String sYearPara, String sMonthPara, String sDayPara, int iTerm, String sGuBun) {
 		Calendar cd = new GregorianCalendar(Integer.parseInt(sYearPara), Integer.parseInt(sMonthPara) - 1, Integer.parseInt(sDayPara));
 
+		addCalender(iTerm, sGuBun, cd);
+
+		return cd.get(Calendar.DAY_OF_MONTH);
+	}
+
+    /**
+	 * sGuBun의 종류에 따라 년/월/일 캘린더에 추가
+	 * @param iTerm
+	 * @param sGuBun
+	 * @param cd
+	 */
+    private static void addCalender(int iTerm, String sGuBun, Calendar cd) {
 		if (EgovStringUtil.equals(sGuBun, "day")) {
 			cd.add(Calendar.DATE, iTerm);
 		} else if (EgovStringUtil.equals(sGuBun, "month")) {
@@ -267,8 +243,6 @@ public static int getCalcDayAsInt(String sYearPara, String sMonthPara, String sD
 		} else if (EgovStringUtil.equals(sGuBun, "year")) {
 			cd.add(Calendar.YEAR, iTerm);
 		}
-
-		return cd.get(Calendar.DAY_OF_MONTH);
 	}
 
     /**