diff --git a/src/components/SummaryPage/SummaryDetailBox/CategorySelectBox/CategoryDropdown/CategoryDropdown.tsx b/src/components/SummaryPage/SummaryDetailBox/CategorySelectBox/CategoryDropdown/CategoryDropdown.tsx
index 3a17e69..45e6070 100644
--- a/src/components/SummaryPage/SummaryDetailBox/CategorySelectBox/CategoryDropdown/CategoryDropdown.tsx
+++ b/src/components/SummaryPage/SummaryDetailBox/CategorySelectBox/CategoryDropdown/CategoryDropdown.tsx
@@ -1,24 +1,33 @@
 import { Dropdown } from '@/styles/SummaryPage';
 
 import DropdownItem from './DropdownItem';
+import { useRecoilValue } from 'recoil';
+import { categoryState } from '@/stores/category';
+import React from 'react';
+import { ISelectedCategoryProps } from 'types/category';
 
-// 임시 타입
-interface Item {
-  id: number;
-  text: string;
-  items?: Item[];
+interface ICategoryDropdownProp {
+  setSelectedCategory: React.Dispatch<
+    React.SetStateAction<ISelectedCategoryProps>
+  >;
+  setIsOpen: React.Dispatch<React.SetStateAction<boolean>>;
 }
 
-type Props = {
-  categoryList: Item[];
-};
-
-const CategoryDropdown = ({ categoryList }: Props) => {
+const CategoryDropdown = ({
+  setSelectedCategory,
+  setIsOpen,
+}: ICategoryDropdownProp) => {
+  const categories = useRecoilValue(categoryState);
   return (
     <Dropdown onClick={(e) => e.stopPropagation()}>
       <ul>
-        {categoryList.map((category) => (
-          <DropdownItem key={category.id} category={category} />
+        {categories.map((category) => (
+          <DropdownItem
+            key={category.categoryId}
+            category={category}
+            setSelectedCategory={setSelectedCategory}
+            setIsOpen={setIsOpen}
+          />
         ))}
       </ul>
     </Dropdown>
diff --git a/src/components/SummaryPage/SummaryDetailBox/CategorySelectBox/CategoryDropdown/DropdownItem.tsx b/src/components/SummaryPage/SummaryDetailBox/CategorySelectBox/CategoryDropdown/DropdownItem.tsx
index f796fb5..9bd120b 100644
--- a/src/components/SummaryPage/SummaryDetailBox/CategorySelectBox/CategoryDropdown/DropdownItem.tsx
+++ b/src/components/SummaryPage/SummaryDetailBox/CategorySelectBox/CategoryDropdown/DropdownItem.tsx
@@ -1,19 +1,27 @@
 import { useState } from 'react';
 
 import DownIcon from '@/assets/icons/down.svg?react';
+import { IFolderProps, ISelectedCategoryProps } from 'types/category';
+import { DropdownTopCategoryName } from '@/styles/SummaryPage';
 
-// 임시 타입
-interface Item {
-  id: number;
-  text: string;
-  items?: Item[];
+interface ICategoryDropdownProp {
+  category: IFolderProps;
+  setSelectedCategory: React.Dispatch<
+    React.SetStateAction<ISelectedCategoryProps>
+  >;
+  setIsOpen: React.Dispatch<React.SetStateAction<boolean>>;
 }
 
-type Props = {
-  category: Item;
-};
+interface IItemClickProps {
+  name: string;
+  categoryId: number;
+}
 
-const DropdownItem = ({ category }: Props) => {
+const DropdownItem = ({
+  category,
+  setSelectedCategory,
+  setIsOpen,
+}: ICategoryDropdownProp) => {
   const [isShow, setIsShow] = useState(false);
 
   const dynamicStyles = {
@@ -21,30 +29,53 @@ const DropdownItem = ({ category }: Props) => {
       transform: isShow ? 'rotateZ(180deg)' : 'rotateZ(0deg)',
     },
     subCategory: {
-      height: isShow ? (category.items?.length || 0) * 46 : 0,
+      height: isShow ? (category.subFolders.length || 0) * 46 : 0,
     },
   };
 
-  const handleItemClick = async (id: number) => {
+  const handleItemClick = async ({ name, categoryId }: IItemClickProps) => {
+    setSelectedCategory({
+      name,
+      categoryId,
+    });
     // API 요청
-    console.log(id);
+    console.log('API 요청');
+    setIsOpen(false);
   };
 
   return (
     <>
-      <li onClick={() => setIsShow(!isShow)}>
-        <DownIcon width={18} height={18} style={dynamicStyles.icon} />
-
-        {category.text}
+      <li>
+        <DownIcon
+          width={18}
+          height={18}
+          style={dynamicStyles.icon}
+          onClick={() => setIsShow(!isShow)}
+        />
+        <DropdownTopCategoryName
+          onClick={() =>
+            handleItemClick({
+              name: category.name,
+              categoryId: category.categoryId,
+            })
+          }
+        >
+          {category.name}
+        </DropdownTopCategoryName>
       </li>
 
       <ul style={dynamicStyles.subCategory}>
-        {category.items?.map((subCategory) => (
+        {category.subFolders.map((subFolder) => (
           <li
-            key={subCategory.id}
-            onClick={() => handleItemClick(subCategory.id)}
+            key={subFolder.categoryId}
+            onClick={() =>
+              handleItemClick({
+                name: subFolder.name,
+                categoryId: subFolder.categoryId,
+              })
+            }
           >
-            {subCategory.text}
+            {subFolder.name}
           </li>
         ))}
       </ul>
diff --git a/src/components/SummaryPage/SummaryDetailBox/CategorySelectBox/CategorySelectBox.tsx b/src/components/SummaryPage/SummaryDetailBox/CategorySelectBox/CategorySelectBox.tsx
index 5b8dc28..459575e 100644
--- a/src/components/SummaryPage/SummaryDetailBox/CategorySelectBox/CategorySelectBox.tsx
+++ b/src/components/SummaryPage/SummaryDetailBox/CategorySelectBox/CategorySelectBox.tsx
@@ -6,33 +6,13 @@ import OpenFileIcon from '@/assets/icons/open-file.svg?react';
 import useOutsideClick from '@/hooks/useOutsideClick';
 
 import { CategoryDropdown } from './CategoryDropdown';
+import { ISelectedCategoryProps } from 'types/category';
 
 const CategorySelectBox = () => {
-  const categoryList = [
-    {
-      id: 1,
-      text: '기획',
-      items: [
-        { id: 2, text: '마케팅' },
-        { id: 3, text: '트렌드' },
-        { id: 4, text: '기업' },
-        { id: 5, text: '용어' },
-      ],
-    },
-    {
-      id: 6,
-      text: '디자인',
-      items: [
-        { id: 7, text: 'AAA' },
-        { id: 8, text: 'BBB' },
-        { id: 9, text: 'CCC' },
-        { id: 10, text: 'DDD' },
-      ],
-    },
-  ];
-
   const [isLogin] = useState(true);
   const [isOpen, setIsOpen] = useState(false);
+  const [selectedCategory, setSelectedCategory] =
+    useState<ISelectedCategoryProps>({ name: '', categoryId: 0 });
 
   // 다른 영역 클릭 시 dropdown 안보여지게 하기
   const [ref] = useOutsideClick<HTMLDivElement>(() => {
@@ -44,24 +24,34 @@ const CategorySelectBox = () => {
 
     setIsOpen(!isOpen);
   };
-
   return (
     <div ref={ref} style={{ display: 'flex', gap: 8 }} onClick={handleBoxClick}>
       <div style={{ position: 'relative', flex: '1 1 auto' }}>
         <div className="select-box">
           <span>
             {isLogin
-              ? '어떤 카테고리에 넣을까요?'
+              ? selectedCategory.name
+                ? selectedCategory.name
+                : '어떤 카테고리에 넣을까요?'
               : '로그인하고 요약한 영상을 아카이빙해요!'}
           </span>
 
           <DownIcon width={18} height={18} />
         </div>
 
-        {isOpen && <CategoryDropdown categoryList={categoryList} />}
+        {isOpen && (
+          <CategoryDropdown
+            setSelectedCategory={setSelectedCategory}
+            setIsOpen={setIsOpen}
+          />
+        )}
       </div>
 
-      <span className={`icon-button ${!isLogin && 'disabled'}`}>
+      <span
+        className={`icon-button ${!isLogin && 'disabled'} ${
+          selectedCategory.name ? 'selected' : 'not-selected'
+        }`}
+      >
         <OpenFileIcon width={28} height={28} />
       </span>
     </div>
diff --git a/src/styles/SummaryPage.ts b/src/styles/SummaryPage.ts
index 1677291..86bc0a8 100644
--- a/src/styles/SummaryPage.ts
+++ b/src/styles/SummaryPage.ts
@@ -50,9 +50,16 @@ export const DetailBox = styled.div`
     width: 40px;
     height: 40px;
     border-radius: 8px;
-    background-color: ${(props) => props.theme.color.gray200};
     cursor: pointer;
 
+    &.selected {
+      background-color: ${(props) => props.theme.color.green400};
+    }
+
+    &.not-selected {
+      background-color: ${(props) => props.theme.color.gray200};
+    }
+
     &.disabled svg {
       & path:nth-of-type(1) {
         fill: ${(props) => props.theme.color.gray300};
@@ -489,3 +496,11 @@ export const ModalContainer = styled(BlurBackground)`
     }
   }
 `;
+
+export const DropdownTopCategoryName = styled.span`
+  width: 100%;
+  height: 100%;
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+`;
diff --git a/types/category.ts b/types/category.ts
index a2c43ff..760296a 100644
--- a/types/category.ts
+++ b/types/category.ts
@@ -10,3 +10,8 @@ export interface IFolderProps {
   topCategoryId: null;
   subFolders: ISubFolderProps[];
 }
+
+export interface ISelectedCategoryProps {
+  name: string;
+  categoryId: number;
+}