diff --git a/src/hooks/option/useCanvasSetting.js b/src/hooks/option/useCanvasSetting.js
index d6cc0e2b..88c32d5f 100644
--- a/src/hooks/option/useCanvasSetting.js
+++ b/src/hooks/option/useCanvasSetting.js
@@ -802,25 +802,25 @@ export function useCanvasSetting(executeEffect = true) {
       /** 문자 글꼴 설정 */
       wordFont: globalFont.commonText.fontFamily?.value ?? 'MS PGothic',
       wordFontStyle: globalFont.commonText.fontWeight?.value ?? 'normal',
-      wordFontSize: globalFont.commonText.fontSize?.value ?? 16,
+      wordFontSize: globalFont.commonText.fontSize?.value ?? 28,
       wordFontColor: globalFont.commonText.fontColor?.value ?? 'black',
 
       /** 흐름방향 글꼴 설정 */
       flowFont: globalFont.flowText.fontFamily?.value ?? 'MS PGothic',
       flowFontStyle: globalFont.flowText.fontWeight?.value ?? 'normal',
-      flowFontSize: globalFont.flowText.fontSize?.value ?? 16,
+      flowFontSize: globalFont.flowText.fontSize?.value ?? 28,
       flowFontColor: globalFont.flowText.fontColor?.value ?? 'black',
 
       /** 치수 글꼴 설정 */
       dimensioFont: globalFont.dimensionLineText.fontFamily?.value ?? 'MS PGothic',
       dimensioFontStyle: globalFont.dimensionLineText.fontWeight?.value ?? 'normal',
-      dimensioFontSize: globalFont.dimensionLineText.fontSize?.value ?? 16,
+      dimensioFontSize: globalFont.dimensionLineText.fontSize?.value ?? 28,
       dimensioFontColor: globalFont.dimensionLineText.fontColor?.value ?? 'black',
 
       /** 회로번호 글꼴 설정 */
       circuitNumFont: globalFont.circuitNumberText.fontFamily?.value ?? 'MS PGothic',
       circuitNumFontStyle: globalFont.circuitNumberText.fontWeight?.value ?? 'normal',
-      circuitNumFontSize: globalFont.circuitNumberText.fontSize?.value ?? 16,
+      circuitNumFontSize: globalFont.circuitNumberText.fontSize?.value ?? 36,
       circuitNumFontColor: globalFont.circuitNumberText.fontColor?.value ?? 'black',
 
       /** 치수선 글꼴 설정 */
diff --git a/src/store/fontAtom.js b/src/store/fontAtom.js
index 3cc4396c..1e42a6b6 100644
--- a/src/store/fontAtom.js
+++ b/src/store/fontAtom.js
@@ -1,11 +1,14 @@
 import { atom, selectorFamily } from 'recoil'
 
-const defaultFont = {
+const makeDefaultFont = (fontSize) => ({
   fontFamily: { id: 1, name: 'MS PGothic', value: 'MS PGothic' },
   fontWeight: { id: 'normal', name: '보통', value: 'normal' },
-  fontSize: { id: 16, name: 16, value: 16 },
+  fontSize: { id: fontSize, name: fontSize, value: fontSize },
   fontColor: { id: 'black', name: '검정색', value: 'black' },
-}
+})
+
+const defaultFont = makeDefaultFont(28)
+const defaultCircuitNumberFont = makeDefaultFont(36)
 
 export const globalFontAtom = atom({
   key: 'fontAtom',
@@ -14,7 +17,7 @@ export const globalFontAtom = atom({
     dimensionLineText: defaultFont,
     flowText: defaultFont,
     lengthText: defaultFont,
-    circuitNumberText: defaultFont,
+    circuitNumberText: defaultCircuitNumberFont,
   },
 })