diff --git a/TypeScript/app/itemClasses.ts b/TypeScript/app/itemClasses.ts
new file mode 100644
index 00000000..7507b2b5
--- /dev/null
+++ b/TypeScript/app/itemClasses.ts
@@ -0,0 +1,59 @@
+export class Item {
+  name: string;
+  sellIn: number;
+  quality: number;
+
+  constructor(name, sellIn, quality) {
+    this.name = name;
+    this.sellIn = sellIn;
+    this.quality = quality;
+  }
+
+  handleQuality() {
+    //
+  }
+
+  handleSellIn() {
+    //
+  }
+}
+
+export class AgedBrie extends Item {
+  constructor(sellIn, quality) {
+    super("Aged Brie", sellIn, quality);
+  }
+  handleQuality() {
+    //
+  }
+
+  handleSellIn() {
+    //
+  }
+}
+
+export class Passes extends Item {
+  constructor(sellIn, quality) {
+    super("Backstage passes to a TAFKAL80ETC concert", sellIn, quality);
+  }
+
+  handleQuality() {
+    //
+  }
+
+  handleSellIn() {
+    //
+  }
+}
+
+export class Surfras extends Item {
+  constructor(sellIn, quality) {
+    super("Sulfuras, Hand of Ragnaros", sellIn, quality);
+  }
+  handleQuality() {
+    //
+  }
+
+  handleSellIn() {
+    //
+  }
+}
diff --git a/TypeScript/test/golden-master-text-test.ts b/TypeScript/test/golden-master-text-test.ts
index 6fa5537a..3ee77ab2 100644
--- a/TypeScript/test/golden-master-text-test.ts
+++ b/TypeScript/test/golden-master-text-test.ts
@@ -1,4 +1,5 @@
-import { Item, GildedRose } from "../app/gilded-rose";
+import { Item } from "@/itemClasses";
+import { GildedRose } from "../app/gilded-rose";
 
 const items = [
   new Item("+5 Dexterity Vest", 10, 20), //
diff --git a/TypeScript/test/jest/gilded-rose.spec.ts b/TypeScript/test/jest/gilded-rose.spec.ts
index c9a6c81b..3f0f0c64 100644
--- a/TypeScript/test/jest/gilded-rose.spec.ts
+++ b/TypeScript/test/jest/gilded-rose.spec.ts
@@ -1,11 +1,11 @@
 import { GildedRose } from "@/gilded-rose";
-import { Item } from "@/itemClasses";
+import { AgedBrie, Passes, Surfras } from "@/itemClasses";
 
 describe("Aged Brie 테스트", () => {
-  let gildedRose = new GildedRose([new Item("Aged Brie", 1, 0)]);
+  let gildedRose = new GildedRose([new AgedBrie(1, 0)]);
 
   beforeEach(() => {
-    gildedRose = new GildedRose([new Item("Aged Brie", 2, 3)]);
+    gildedRose = new GildedRose([new AgedBrie(2, 3)]);
   });
 
   it("Aged Brie의 quality는 1 증가, sellIn은 1 감소", () => {
@@ -16,7 +16,7 @@ describe("Aged Brie 테스트", () => {
   });
 
   it("quality는 50을 초과할 수 없음", () => {
-    const gildedRose = new GildedRose([new Item("Aged Brie", 2, 50)]);
+    const gildedRose = new GildedRose([new AgedBrie(2, 50)]);
     const items = gildedRose.updateQuality();
 
     expect(items[0].sellIn).toBe(1);
@@ -25,12 +25,10 @@ describe("Aged Brie 테스트", () => {
 });
 
 describe("Surfras 테스트", () => {
-  let gildedRose = new GildedRose([
-    new Item("Sulfuras, Hand of Ragnaros", 1, 0),
-  ]);
+  let gildedRose = new GildedRose([new Surfras(1, 0)]);
 
   beforeEach(() => {
-    gildedRose = new GildedRose([new Item("Sulfuras, Hand of Ragnaros", 2, 3)]);
+    gildedRose = new GildedRose([new Surfras(2, 3)]);
   });
 
   it("Surfras의 quality는 변하지 않음, sellIn 변하지 않음", () => {
@@ -42,14 +40,10 @@ describe("Surfras 테스트", () => {
 });
 
 describe("Backstage passes 테스트", () => {
-  let gildedRose = new GildedRose([
-    new Item("Backstage passes to a TAFKAL80ETC concert", 1, 0),
-  ]);
+  let gildedRose = new GildedRose([new Passes(1, 0)]);
 
   beforeEach(() => {
-    gildedRose = new GildedRose([
-      new Item("Backstage passes to a TAFKAL80ETC concert", 2, 3),
-    ]);
+    gildedRose = new GildedRose([new Passes(2, 3)]);
   });
 
   it("Backstage passes의 sellIn값 1감소, quality 1증가", () => {
@@ -60,9 +54,7 @@ describe("Backstage passes 테스트", () => {
   });
 
   it("Backstage passes의 sellIn값 10일부터, quality 2증가", () => {
-    const gildedRose = new GildedRose([
-      new Item("Backstage passes to a TAFKAL80ETC concert", 10, 3),
-    ]);
+    const gildedRose = new GildedRose([new Passes(10, 3)]);
     const items = gildedRose.updateQuality();
 
     expect(items[0].sellIn).toBe(9);
@@ -70,9 +62,7 @@ describe("Backstage passes 테스트", () => {
   });
 
   it("Backstage passes의 sellIn값 5일부터, quality 3증가", () => {
-    const gildedRose = new GildedRose([
-      new Item("Backstage passes to a TAFKAL80ETC concert", 5, 3),
-    ]);
+    const gildedRose = new GildedRose([new Passes(5, 3)]);
     const items = gildedRose.updateQuality();
 
     expect(items[0].sellIn).toBe(4);