diff --git a/gg-admin-repo/src/main/java/gg/admin/repo/category/CategoryAdminRepository.java b/gg-admin-repo/src/main/java/gg/admin/repo/category/CategoryAdminRepository.java
index 7bd01c701..9f506092c 100644
--- a/gg-admin-repo/src/main/java/gg/admin/repo/category/CategoryAdminRepository.java
+++ b/gg-admin-repo/src/main/java/gg/admin/repo/category/CategoryAdminRepository.java
@@ -6,4 +6,6 @@
 
 public interface CategoryAdminRepository extends JpaRepository<Category, Long> {
 	Boolean existsByName(String categoryName);
+
+	Category findByName(String categoryName);
 }
diff --git a/gg-pingpong-api/src/main/java/gg/party/api/admin/category/controller/CategoryAdminController.java b/gg-pingpong-api/src/main/java/gg/party/api/admin/category/controller/CategoryAdminController.java
index 36065dc20..a93e36e24 100644
--- a/gg-pingpong-api/src/main/java/gg/party/api/admin/category/controller/CategoryAdminController.java
+++ b/gg-pingpong-api/src/main/java/gg/party/api/admin/category/controller/CategoryAdminController.java
@@ -1,5 +1,7 @@
 package gg.party.api.admin.category.controller;
 
+import javax.validation.Valid;
+
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.DeleteMapping;
@@ -25,7 +27,7 @@ public class CategoryAdminController {
 	 * @return 추가 성공 여부
 	 */
 	@PostMapping
-	public ResponseEntity<Void> categoryAdd(@RequestBody CategoryAddAdminReqDto reqDto) {
+	public ResponseEntity<Void> categoryAdd(@RequestBody @Valid CategoryAddAdminReqDto reqDto) {
 		categoryAdminService.addCategory(reqDto);
 		return ResponseEntity.status(HttpStatus.CREATED).build();
 	}
diff --git a/gg-pingpong-api/src/main/java/gg/party/api/admin/category/controller/request/CategoryAddAdminReqDto.java b/gg-pingpong-api/src/main/java/gg/party/api/admin/category/controller/request/CategoryAddAdminReqDto.java
index e154c0f20..043053450 100644
--- a/gg-pingpong-api/src/main/java/gg/party/api/admin/category/controller/request/CategoryAddAdminReqDto.java
+++ b/gg-pingpong-api/src/main/java/gg/party/api/admin/category/controller/request/CategoryAddAdminReqDto.java
@@ -1,10 +1,19 @@
 package gg.party.api.admin.category.controller.request;
 
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.Size;
+
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 
 @Getter
-@NoArgsConstructor
+@NoArgsConstructor(access = lombok.AccessLevel.PROTECTED)
 public class CategoryAddAdminReqDto {
+	@NotBlank(message = "카테고리 이름은 비어 있을 수 없습니다.")
+	@Size(min = 1, max = 10, message = "카테고리 이름은 1자 이상 10자 이하이어야 합니다.")
 	private String categoryName;
+
+	public CategoryAddAdminReqDto(String category) {
+		this.categoryName = category;
+	}
 }
diff --git a/gg-pingpong-api/src/main/java/gg/party/api/admin/category/service/CategoryAdminService.java b/gg-pingpong-api/src/main/java/gg/party/api/admin/category/service/CategoryAdminService.java
index 48acb1608..2718508ea 100644
--- a/gg-pingpong-api/src/main/java/gg/party/api/admin/category/service/CategoryAdminService.java
+++ b/gg-pingpong-api/src/main/java/gg/party/api/admin/category/service/CategoryAdminService.java
@@ -21,7 +21,7 @@ public class CategoryAdminService {
 	/**
 	 * 카테고리 추가
 	 * @param reqDto 추가할 카테고리 이름
-	 * @exception CategoryDuplicateException 중복된 카테고리
+	 * @exception CategoryDuplicateException 중복된 카테고리 - 409
 	 */
 	@Transactional
 	public void addCategory(CategoryAddAdminReqDto reqDto) {
@@ -35,20 +35,20 @@ public void addCategory(CategoryAddAdminReqDto reqDto) {
 
 	/**
 	 * 카테고리 삭제
-	 * 삭제 시 기존에 room에 연결되어 있던 카테고리는 default(1) 로 변경
+	 * 삭제 시 기존에 room에 연결되어 있던 카테고리는 etc 로 변경
 	 * @param categoryId 삭제할 카테고리 id
-	 * @exception CategoryNotFoundException 유효하지 않은 카테고리
-	 * @exception DefaultCategoryNeedException default 카테고리 존재 x 또는 default 카테고리 삭제 요청
+	 * @exception CategoryNotFoundException 유효하지 않은 카테고리 - 404
+	 * @exception DefaultCategoryNeedException default 카테고리 존재 x 또는 default 카테고리 삭제 요청 - 400
 	 */
 	@Transactional
 	public void removeCategory(Long categoryId) {
 		Category category = categoryAdminRepository.findById(categoryId)
 			.orElseThrow(CategoryNotFoundException::new);
 
-		Category defaultCategory = categoryAdminRepository.findById(DefaultCategoryNeedException.DEFAULT_CATEGORY_ID)
-			.orElseThrow(DefaultCategoryNeedException::new);
+		Category defaultCategory = categoryAdminRepository.findByName(
+			DefaultCategoryNeedException.DEFAULT_CATEGORY_NAME);
 
-		if (category.equals(defaultCategory)) {
+		if (defaultCategory == null || category.equals(defaultCategory)) {
 			throw new DefaultCategoryNeedException();
 		}
 
diff --git a/gg-pingpong-api/src/test/java/gg/party/api/admin/category/CategoryAdminControllerTest.java b/gg-pingpong-api/src/test/java/gg/party/api/admin/category/CategoryAdminControllerTest.java
new file mode 100644
index 000000000..e6f2af8b6
--- /dev/null
+++ b/gg-pingpong-api/src/test/java/gg/party/api/admin/category/CategoryAdminControllerTest.java
@@ -0,0 +1,163 @@
+package gg.party.api.admin.category;
+
+import static org.assertj.core.api.Assertions.*;
+import static org.springframework.restdocs.mockmvc.RestDocumentationRequestBuilders.*;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
+
+import org.apache.http.HttpHeaders;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+import org.springframework.http.MediaType;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.transaction.annotation.Transactional;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import gg.auth.utils.AuthTokenProvider;
+import gg.data.party.Category;
+import gg.data.party.Room;
+import gg.data.party.type.RoomType;
+import gg.data.user.User;
+import gg.data.user.type.RacketType;
+import gg.data.user.type.RoleType;
+import gg.data.user.type.SnsType;
+import gg.party.api.admin.category.controller.request.CategoryAddAdminReqDto;
+import gg.repo.party.CategoryRepository;
+import gg.repo.party.RoomRepository;
+import gg.utils.TestDataUtils;
+import gg.utils.annotation.IntegrationTest;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+
+@IntegrationTest
+@AutoConfigureMockMvc
+@Transactional
+@RequiredArgsConstructor
+@Slf4j
+public class CategoryAdminControllerTest {
+	@Autowired
+	MockMvc mockMvc;
+	@Autowired
+	TestDataUtils testDataUtils;
+	@Autowired
+	ObjectMapper objectMapper;
+	@Autowired
+	AuthTokenProvider tokenProvider;
+	@Autowired
+	RoomRepository roomRepository;
+	@Autowired
+	CategoryRepository categoryRepository;
+	User userTester;
+	String userAccessToken;
+	Category defaultCategory;
+	Category testCategory;
+	Room testRoom;
+
+	@Nested
+	@DisplayName("카테고리 추가 테스트")
+	class CategoryAdd {
+		@BeforeEach
+		void beforeEach() {
+			userTester = testDataUtils.createNewUser("adminTester", "adminTester",
+				RacketType.DUAL, SnsType.SLACK, RoleType.ADMIN);
+			userAccessToken = tokenProvider.createToken(userTester.getId());
+			defaultCategory = testDataUtils.createNewCategory("etc");
+		}
+
+		@Test
+		@DisplayName("카테고리 추가 성공 201")
+		public void success() throws Exception {
+			//given
+			String url = "/party/admin/categories";
+			CategoryAddAdminReqDto categoryAddAdminReqDto = new CategoryAddAdminReqDto("category");
+			String jsonRequest = objectMapper.writeValueAsString(categoryAddAdminReqDto);
+			//when
+			String contentAsString = mockMvc.perform(post(url)
+					.contentType(MediaType.APPLICATION_JSON)
+					.content(jsonRequest)
+					.header(HttpHeaders.AUTHORIZATION, "Bearer " + userAccessToken))
+				.andExpect(status().isCreated())
+				.andReturn().getResponse().getContentAsString();
+			//then
+			assertThat(categoryRepository.findAll()).size().isEqualTo(2);
+		}
+
+		@Test
+		@DisplayName("이미 존재하는 카테고리로 인한 에러 409")
+		public void fail() throws Exception {
+			//given
+			String url = "/party/admin/categories";
+			testDataUtils.createNewCategory("category");
+			CategoryAddAdminReqDto categoryAddAdminReqDto = new CategoryAddAdminReqDto("category");
+			String jsonRequest = objectMapper.writeValueAsString(categoryAddAdminReqDto);
+			//when & then
+			String contentAsString = mockMvc.perform(post(url)
+					.contentType(MediaType.APPLICATION_JSON)
+					.content(jsonRequest)
+					.header(HttpHeaders.AUTHORIZATION, "Bearer " + userAccessToken))
+				.andExpect(status().isConflict()).toString();
+		}
+	}
+
+	@Nested
+	@DisplayName("카테고리 삭제 테스트")
+	class CategoryRemove {
+		@BeforeEach
+		void beforeEach() {
+			userTester = testDataUtils.createNewUser("adminTester", "adminTester",
+				RacketType.DUAL, SnsType.SLACK, RoleType.ADMIN);
+			userAccessToken = tokenProvider.createToken(userTester.getId());
+			testCategory = testDataUtils.createNewCategory("test");
+			testRoom = testDataUtils.createNewRoom(userTester, userTester, testCategory, 1, 1,
+				3, 2, 180, RoomType.OPEN);
+			defaultCategory = testDataUtils.createNewCategory("etc");
+		}
+
+		@Test
+		@DisplayName("카테고리 삭제 성공 204")
+		public void success() throws Exception {
+			//given
+			String categoryID = testCategory.getId().toString();
+			String url = "/party/admin/categories/" + categoryID;
+			//when
+			String contentAsString = mockMvc.perform(delete(url)
+					.contentType(MediaType.APPLICATION_JSON)
+					.header(HttpHeaders.AUTHORIZATION, "Bearer " + userAccessToken))
+				.andExpect(status().isNoContent())
+				.andReturn().getResponse().getContentAsString();
+			//then
+			assertThat(categoryRepository.findAll()).size().isEqualTo(1);
+			assertThat(roomRepository.findById(testRoom.getId()).get().getCategory().getName()).isEqualTo("etc");
+		}
+
+		@Test
+		@DisplayName("존재하지 않는 카테고리로 인한 에러 404")
+		public void noCategoryFail() throws Exception {
+			//given
+			String categoryID = "10";
+			String url = "/party/admin/categories/" + categoryID;
+			//when & then
+			String contentAsString = mockMvc.perform(delete(url)
+					.contentType(MediaType.APPLICATION_JSON)
+					.header(HttpHeaders.AUTHORIZATION, "Bearer " + userAccessToken))
+				.andExpect(status().isNotFound()).toString();
+		}
+
+		@Test
+		@DisplayName("default 카테고리 삭제 요청에 대한 에러 400")
+		public void fail() throws Exception {
+			//given
+			String categoryID = defaultCategory.getId().toString();
+			String url = "/party/admin/categories/" + categoryID;
+			//when & then
+			String contentAsString = mockMvc.perform(delete(url)
+					.contentType(MediaType.APPLICATION_JSON)
+					.header(HttpHeaders.AUTHORIZATION, "Bearer " + userAccessToken))
+				.andExpect(status().isBadRequest()).toString();
+		}
+	}
+}
diff --git a/gg-utils/src/main/java/gg/utils/exception/ErrorCode.java b/gg-utils/src/main/java/gg/utils/exception/ErrorCode.java
index 0db612d88..c896b7703 100644
--- a/gg-utils/src/main/java/gg/utils/exception/ErrorCode.java
+++ b/gg-utils/src/main/java/gg/utils/exception/ErrorCode.java
@@ -179,11 +179,11 @@ public enum ErrorCode {
 	ROOM_SAME_STATUS(400, "PT204", "이미 처리된 방 입니다."),
 	ROOM_NOT_OPEN(400, "PT205", "모집중인 방이 아닙니다."),
 	ROOM_NOT_PARTICIPANT(400, "PT206", "참여하지 않은 방 입니다."),
-	CATEGORY_DUPLICATE(400, "PT207", "중복된 카테고리 입니다."),
-	ROOM_MIN_MAX_PEOPLE(400, "PT208", "최소인원이 최대인원보다 큽니다."),
+	ROOM_MIN_MAX_PEOPLE(400, "PT207", "최소인원이 최대인원보다 큽니다."),
 	USER_ALREADY_IN_ROOM(409, "PT301", "이미 참여한 방 입니다."),
 	ALREADY_REPORTED(409, "PT302", "이미 신고한 요청입니다."),
 	SELF_REPORT(409, "PT303", "자신을 신고할 수 없습니다."),
+	CATEGORY_DUPLICATE(409, "PT304", "중복된 카테고리 입니다."),
 	ON_PENALTY(403, "PT501", "패널티 상태입니다.");
 
 	private final int status;
diff --git a/gg-utils/src/main/java/gg/utils/exception/party/DefaultCategoryNeedException.java b/gg-utils/src/main/java/gg/utils/exception/party/DefaultCategoryNeedException.java
index 642528de4..d0b193f17 100644
--- a/gg-utils/src/main/java/gg/utils/exception/party/DefaultCategoryNeedException.java
+++ b/gg-utils/src/main/java/gg/utils/exception/party/DefaultCategoryNeedException.java
@@ -1,10 +1,10 @@
 package gg.utils.exception.party;
 
 import gg.utils.exception.ErrorCode;
-import gg.utils.exception.custom.NotExistException;
+import gg.utils.exception.custom.BusinessException;
 
-public class DefaultCategoryNeedException extends NotExistException {
-	public static final Long DEFAULT_CATEGORY_ID = 1L;
+public class DefaultCategoryNeedException extends BusinessException {
+	public static final String DEFAULT_CATEGORY_NAME = "etc";
 
 	public DefaultCategoryNeedException() {
 		super(ErrorCode.DEFAULT_CATEGORY_NEED.getMessage(), ErrorCode.DEFAULT_CATEGORY_NEED);